./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/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 f369e67185304fce6130a1dfc66e8cb89abf0605 .................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 10:15:14,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:15:14,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:15:14,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:15:14,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:15:14,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:15:14,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:15:14,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:15:14,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:15:14,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:15:14,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:15:14,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:15:14,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:15:14,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:15:14,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:15:14,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:15:14,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:15:14,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:15:14,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:15:14,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:15:14,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:15:14,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:15:14,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:15:14,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:15:14,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:15:14,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:15:14,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:15:14,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:15:14,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:15:14,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:15:14,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:15:14,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:15:14,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:15:14,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:15:14,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:15:14,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:15:14,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:15:14,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:15:14,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:15:14,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:15:14,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:15:14,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:15:14,691 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:15:14,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:15:14,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:15:14,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:15:14,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:15:14,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:15:14,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:15:14,693 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:15:14,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:15:14,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:15:14,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:15:14,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:15:14,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:15:14,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:15:14,694 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:15:14,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:15:14,695 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:15:14,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:15:14,695 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:15:14,695 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:15:14,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:15:14,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:15:14,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:14,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:15:14,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:15:14,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:15:14,696 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:15:14,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:15:14,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:15:14,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/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 -> f369e67185304fce6130a1dfc66e8cb89abf0605 [2019-10-22 10:15:14,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:15:14,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:15:14,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:15:14,747 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:15:14,748 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:15:14,748 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2019-10-22 10:15:14,802 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/data/e21248a7e/62c28982aee841679821393d25c5cc76/FLAGe67f7d724 [2019-10-22 10:15:15,262 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:15:15,265 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2019-10-22 10:15:15,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/data/e21248a7e/62c28982aee841679821393d25c5cc76/FLAGe67f7d724 [2019-10-22 10:15:15,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/data/e21248a7e/62c28982aee841679821393d25c5cc76 [2019-10-22 10:15:15,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:15:15,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:15:15,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:15,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:15:15,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:15:15,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eafad64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15, skipping insertion in model container [2019-10-22 10:15:15,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,790 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:15:15,821 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:15:16,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:16,160 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:15:16,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:16,254 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:15:16,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16 WrapperNode [2019-10-22 10:15:16,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:16,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:16,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:15:16,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:15:16,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:16,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:15:16,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:15:16,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:16,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:16,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:16,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:16,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:16,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/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 [2019-10-22 10:15:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 10:15:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 10:15:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 10:15:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 10:15:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 10:15:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:15:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:16,847 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:15:16,848 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 10:15:16,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:16 BoogieIcfgContainer [2019-10-22 10:15:16,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:15:16,849 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:15:16,850 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:15:16,860 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:15:16,861 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:16" (1/1) ... [2019-10-22 10:15:16,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:15:16,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2019-10-22 10:15:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2019-10-22 10:15:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:15:16,901 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:17,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:17,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:17,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2019-10-22 10:15:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2019-10-22 10:15:17,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:15:17,043 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:17,237 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-10-22 10:15:17,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:15:17 ImpRootNode [2019-10-22 10:15:17,274 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:15:17,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:15:17,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:15:17,275 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:15:17,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:16" (3/4) ... [2019-10-22 10:15:17,278 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:15:17,321 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_de5a11d4-1d8f-47cf-8599-032b7a2e4b3b/bin/ukojak/witness.graphml [2019-10-22 10:15:17,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:15:17,327 INFO L168 Benchmark]: Toolchain (without parser) took 1549.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.0 GB in the end (delta: -103.5 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:17,328 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:17,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:17,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:17,329 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:17,329 INFO L168 Benchmark]: RCFGBuilder took 520.01 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:17,330 INFO L168 Benchmark]: CodeCheck took 424.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:17,330 INFO L168 Benchmark]: Witness Printer took 46.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:17,332 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1052]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L989] SLL* head = malloc(sizeof(SLL)); [L990] head->next = ((void*)0) [L991] head->prev = ((void*)0) [L992] head->data = 0 [L994] SLL* x = head; [L997] COND FALSE !(__VERIFIER_nondet_int()) [L1008] COND TRUE __VERIFIER_nondet_int() [L1009] x = malloc(sizeof(SLL)) [L1010] x->data = 1 [L1011] x->next = head [L1012] x->prev = ((void*)0) [L1013] head = x [L1039] x = head [L1042] EXPR x->data [L1042] COND FALSE !(x->data != 1) [L1048] EXPR x->next [L1048] x = x->next [L1049] COND TRUE \read(*x) [L1051] EXPR x->data [L1051] COND TRUE x->data != 1 [L1052] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 482.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 520.01 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * CodeCheck took 424.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...