./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/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 b7feccaf382e9f358fe7bd48bccc9b98dfa2aebd ....................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 23:59:32,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:59:32,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:59:32,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:59:32,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:59:32,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:59:32,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:59:32,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:59:32,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:59:32,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:59:32,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:59:32,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:59:32,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:59:32,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:59:32,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:59:32,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:59:32,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:59:32,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:59:32,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:59:32,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:59:32,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:59:32,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:59:32,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:59:32,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:59:32,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:59:32,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:59:32,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:59:32,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:59:32,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:59:32,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:59:32,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:59:32,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:59:32,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:59:32,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:59:32,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:59:32,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:59:32,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:59:32,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:59:32,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:59:32,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:59:32,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:59:32,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-19 23:59:32,945 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:59:32,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:59:32,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-19 23:59:32,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-19 23:59:32,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:59:32,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:59:32,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:59:32,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:59:32,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:59:32,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:59:32,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:59:32,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:59:32,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:59:32,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:59:32,949 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:59:32,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:59:32,950 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:59:32,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:59:32,950 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-19 23:59:32,950 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-19 23:59:32,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:59:32,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:59:32,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-19 23:59:32,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:59:32,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:59:32,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:59:32,952 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-19 23:59:32,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:59:32,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:59:32,953 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/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/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 -> b7feccaf382e9f358fe7bd48bccc9b98dfa2aebd [2019-11-19 23:59:33,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:59:33,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:59:33,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:59:33,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:59:33,106 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:59:33,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/../../sv-benchmarks/c/forester-heap/dll-01-1.i [2019-11-19 23:59:33,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/data/0d87beceb/203cb3222fad41babb2a4a6a4c1ec6eb/FLAG2a692e41c [2019-11-19 23:59:33,623 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:59:33,624 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/sv-benchmarks/c/forester-heap/dll-01-1.i [2019-11-19 23:59:33,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/data/0d87beceb/203cb3222fad41babb2a4a6a4c1ec6eb/FLAG2a692e41c [2019-11-19 23:59:33,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/data/0d87beceb/203cb3222fad41babb2a4a6a4c1ec6eb [2019-11-19 23:59:33,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:59:33,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:59:33,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:59:33,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:59:33,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:59:33,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:59:33" (1/1) ... [2019-11-19 23:59:33,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4b5a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:33, skipping insertion in model container [2019-11-19 23:59:33,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:59:33" (1/1) ... [2019-11-19 23:59:33,693 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:59:33,739 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:59:34,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:59:34,106 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:59:34,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:59:34,241 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:59:34,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34 WrapperNode [2019-11-19 23:59:34,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:59:34,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:59:34,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:59:34,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:59:34,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:59:34,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:59:34,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:59:34,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:59:34,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... [2019-11-19 23:59:34,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:59:34,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:59:34,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:59:34,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:59:34,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/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 [2019-11-19 23:59:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 23:59:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-19 23:59:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 23:59:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:59:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:59:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:59:35,037 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:59:35,037 INFO L285 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-19 23:59:35,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:59:35 BoogieIcfgContainer [2019-11-19 23:59:35,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:59:35,039 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-19 23:59:35,039 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-19 23:59:35,050 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-19 23:59:35,050 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:59:35" (1/1) ... [2019-11-19 23:59:35,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:59:35,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 74 states and 118 transitions. [2019-11-19 23:59:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2019-11-19 23:59:35,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 23:59:35,105 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:35,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:35,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2019-11-19 23:59:35,308 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2019-11-19 23:59:35,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 23:59:35,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:35,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:35,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 70 states and 108 transitions. [2019-11-19 23:59:35,421 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2019-11-19 23:59:35,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 23:59:35,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:35,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2019-11-19 23:59:35,474 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-11-19 23:59:35,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 23:59:35,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:35,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:36,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 70 states and 102 transitions. [2019-11-19 23:59:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 102 transitions. [2019-11-19 23:59:36,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 23:59:36,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 74 states and 109 transitions. [2019-11-19 23:59:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2019-11-19 23:59:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-19 23:59:36,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2019-11-19 23:59:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2019-11-19 23:59:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 23:59:36,701 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:36,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 74 states and 105 transitions. [2019-11-19 23:59:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-11-19 23:59:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 23:59:36,845 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:36,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2019-11-19 23:59:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2019-11-19 23:59:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 23:59:36,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 74 states and 100 transitions. [2019-11-19 23:59:37,025 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2019-11-19 23:59:37,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 23:59:37,026 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:37,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:37,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:37,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 72 states and 96 transitions. [2019-11-19 23:59:37,141 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 96 transitions. [2019-11-19 23:59:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-19 23:59:37,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 83 states and 112 transitions. [2019-11-19 23:59:40,022 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2019-11-19 23:59:40,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-19 23:59:40,023 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 23:59:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:59:40,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 81 states and 110 transitions. [2019-11-19 23:59:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2019-11-19 23:59:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-19 23:59:40,067 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:59:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:59:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:59:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:59:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:59:40,308 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2019-11-19 23:59:40,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 11:59:40 ImpRootNode [2019-11-19 23:59:40,382 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-19 23:59:40,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:59:40,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:59:40,383 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:59:40,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:59:35" (3/4) ... [2019-11-19 23:59:40,385 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 23:59:40,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e1998b7d-a20f-4171-8566-f0ef4e8f3ed3/bin/ukojak/witness.graphml [2019-11-19 23:59:40,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:59:40,478 INFO L168 Benchmark]: Toolchain (without parser) took 6808.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 944.8 MB in the beginning and 821.7 MB in the end (delta: 123.1 MB). Peak memory consumption was 322.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:59:40,479 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:59:40,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -144.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:59:40,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:59:40,480 INFO L168 Benchmark]: Boogie Preprocessor took 35.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:59:40,481 INFO L168 Benchmark]: RCFGBuilder took 694.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:59:40,482 INFO L168 Benchmark]: CodeCheck took 5343.11 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.0 GB in the beginning and 824.6 MB in the end (delta: 203.8 MB). Peak memory consumption was 288.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:59:40,483 INFO L168 Benchmark]: Witness Printer took 94.02 ms. Allocated memory is still 1.2 GB. Free memory was 824.6 MB in the beginning and 821.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:59:40,486 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, 74 locations, 13 error locations. Result: UNSAFE, OverallTime: 5.2s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25646 SDtfs, 10632 SDslu, 9336 SDs, 0 SdLazy, 37214 SolverSat, 16862 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1209 GetRequests, 1129 SyntacticMatches, 6 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 19361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 1/1 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: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 569.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -144.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 694.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 11.5 GB. * CodeCheck took 5343.11 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.0 GB in the beginning and 824.6 MB in the end (delta: 203.8 MB). Peak memory consumption was 288.3 MB. Max. memory is 11.5 GB. * Witness Printer took 94.02 ms. Allocated memory is still 1.2 GB. Free memory was 824.6 MB in the beginning and 821.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...