./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b641e49e75a310172f60778d80b34a59b72d2ae ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 13:15:45,984 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:15:45,985 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:15:45,993 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:15:45,993 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:15:45,994 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:15:45,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:15:45,995 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:15:45,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:15:45,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:15:45,996 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:15:45,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:15:45,997 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:15:45,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:15:45,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:15:45,998 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:15:45,999 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:15:46,000 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:15:46,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:15:46,002 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:15:46,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:15:46,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:15:46,004 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:15:46,004 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:15:46,004 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:15:46,004 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:15:46,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:15:46,005 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:15:46,006 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:15:46,006 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:15:46,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:15:46,006 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:15:46,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:15:46,007 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:15:46,007 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:15:46,007 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:15:46,008 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-08 13:15:46,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:15:46,018 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:15:46,019 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:15:46,019 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:15:46,019 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:15:46,020 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:15:46,020 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 13:15:46,020 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:15:46,020 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:15:46,020 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:15:46,020 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 13:15:46,020 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 13:15:46,021 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 13:15:46,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 13:15:46,021 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:15:46,021 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:15:46,021 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 13:15:46,021 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 13:15:46,022 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:15:46,022 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 13:15:46,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 13:15:46,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:15:46,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 13:15:46,022 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 13:15:46,023 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 13:15:46,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 2b641e49e75a310172f60778d80b34a59b72d2ae [2018-12-08 13:15:46,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:15:46,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:15:46,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:15:46,059 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:15:46,059 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:15:46,060 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe_false-valid-deref.i [2018-12-08 13:15:46,101 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/data/e77205edd/a60c40fbc31740b0a86650e1b001279e/FLAG1ddbdc640 [2018-12-08 13:15:46,455 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:15:46,456 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/sv-benchmarks/c/array-memsafety/reverse_array_unsafe_false-valid-deref.i [2018-12-08 13:15:46,463 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/data/e77205edd/a60c40fbc31740b0a86650e1b001279e/FLAG1ddbdc640 [2018-12-08 13:15:46,824 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/data/e77205edd/a60c40fbc31740b0a86650e1b001279e [2018-12-08 13:15:46,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:15:46,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:15:46,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:15:46,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:15:46,829 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:15:46,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:15:46" (1/1) ... [2018-12-08 13:15:46,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159e01e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:46, skipping insertion in model container [2018-12-08 13:15:46,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:15:46" (1/1) ... [2018-12-08 13:15:46,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:15:46,852 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:15:46,989 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:15:46,995 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:15:47,051 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:15:47,079 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:15:47,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47 WrapperNode [2018-12-08 13:15:47,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:15:47,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:15:47,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:15:47,080 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:15:47,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:15:47,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:15:47,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:15:47,105 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:15:47,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:15:47,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:15:47,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:15:47,120 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:15:47,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:15:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 13:15:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 13:15:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 13:15:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 13:15:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 13:15:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:15:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:15:47,390 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:15:47,390 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 13:15:47,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:15:47 BoogieIcfgContainer [2018-12-08 13:15:47,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:15:47,391 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 13:15:47,391 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 13:15:47,397 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 13:15:47,398 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:15:47" (1/1) ... [2018-12-08 13:15:47,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:15:47,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:15:47,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2018-12-08 13:15:47,426 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-12-08 13:15:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 13:15:47,428 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:15:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:15:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:15:47,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:15:47,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 42 states and 48 transitions. [2018-12-08 13:15:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-12-08 13:15:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 13:15:47,540 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:15:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:15:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:15:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:15:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:15:47,593 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2018-12-08 13:15:47,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 01:15:47 ImpRootNode [2018-12-08 13:15:47,607 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 13:15:47,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:15:47,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:15:47,607 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:15:47,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:15:47" (3/4) ... [2018-12-08 13:15:47,609 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 13:15:47,631 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c5f32dea-bc0d-4d74-9ecf-5f35e6d53868/bin-2019/ukojak/witness.graphml [2018-12-08 13:15:47,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:15:47,632 INFO L168 Benchmark]: Toolchain (without parser) took 806.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -73.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:47,633 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:15:47,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:47,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.34 ms. Allocated memory is still 1.1 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. [2018-12-08 13:15:47,634 INFO L168 Benchmark]: Boogie Preprocessor took 14.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:15:47,634 INFO L168 Benchmark]: RCFGBuilder took 270.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:47,634 INFO L168 Benchmark]: CodeCheck took 215.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:47,635 INFO L168 Benchmark]: Witness Printer took 24.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:15:47,636 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, 53 locations, 21 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 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: 547]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L541] int i, j, tmp; [L542] int length = __VERIFIER_nondet_int(); [L543] COND TRUE length < 1 [L543] length = 1 [L544] COND FALSE !(length % 2 == 0) [L545] int *arr = __builtin_alloca (length); [L546] i=0 [L546] COND TRUE i