./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/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 8e7a3bf93085b5e270d45bd0dc9d7e17d0c05479 ............................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 10:17:13,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:17:13,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:17:13,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:17:13,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:17:13,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:17:13,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:17:13,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:17:13,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:17:13,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:17:13,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:17:13,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:17:13,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:17:13,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:17:13,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:17:13,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:17:13,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:17:13,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:17:13,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:17:13,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:17:13,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:17:13,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:17:13,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:17:13,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:17:13,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:17:13,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:17:13,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:17:13,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:17:13,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:17:13,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:17:13,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:17:14,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:17:14,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:17:14,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:17:14,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:17:14,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:17:14,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:17:14,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:17:14,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:17:14,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:17:14,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:17:14,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-10-22 10:17:14,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:17:14,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:17:14,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:17:14,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:17:14,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:17:14,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:17:14,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:17:14,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:17:14,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:17:14,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:17:14,016 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 10:17:14,017 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 10:17:14,017 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 10:17:14,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:17:14,020 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:17:14,020 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:17:14,021 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:17:14,021 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:17:14,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:17:14,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:17:14,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:17:14,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:17:14,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:17:14,022 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:17:14,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:17:14,022 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_fb576863-1daf-485e-acdb-bd39633a866d/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 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 -> 8e7a3bf93085b5e270d45bd0dc9d7e17d0c05479 [2019-10-22 10:17:14,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:17:14,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:17:14,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:17:14,084 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:17:14,084 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:17:14,085 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-10-22 10:17:14,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/data/c53ba5e96/526902e7d9114be9a6b6d61c71694385/FLAG0d8a5faa9 [2019-10-22 10:17:14,555 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:17:14,558 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-10-22 10:17:14,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/data/c53ba5e96/526902e7d9114be9a6b6d61c71694385/FLAG0d8a5faa9 [2019-10-22 10:17:14,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/data/c53ba5e96/526902e7d9114be9a6b6d61c71694385 [2019-10-22 10:17:14,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:17:14,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:17:14,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:17:14,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:17:14,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:17:14,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:17:14" (1/1) ... [2019-10-22 10:17:14,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58628272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:14, skipping insertion in model container [2019-10-22 10:17:14,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:17:14" (1/1) ... [2019-10-22 10:17:14,594 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:17:14,625 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:17:14,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:17:14,993 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:17:15,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:17:15,080 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:17:15,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15 WrapperNode [2019-10-22 10:17:15,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:17:15,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:17:15,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:17:15,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:17:15,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:17:15,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:17:15,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:17:15,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:17:15,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:17:15,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:17:15,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:17:15,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:17:15,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/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 10:17:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 10:17:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 10:17:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:17:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:17:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:17:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:17:15,540 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:17:15,540 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 10:17:15,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:17:15 BoogieIcfgContainer [2019-10-22 10:17:15,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:17:15,542 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:17:15,542 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:17:15,552 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:17:15,553 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:17:15" (1/1) ... [2019-10-22 10:17:15,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:17:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:15,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2019-10-22 10:17:15,596 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-10-22 10:17:15,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:17:15,598 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:17:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:17:15,730 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 10:17:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2019-10-22 10:17:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-10-22 10:17:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:17:15,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:17:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:17:15,854 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 10:17:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2019-10-22 10:17:15,967 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-10-22 10:17:15,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:17:15,968 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:17:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:17:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:17:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:17:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:17:16,063 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-10-22 10:17:16,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:17:16 ImpRootNode [2019-10-22 10:17:16,085 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:17:16,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:17:16,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:17:16,085 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:17:16,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:17:15" (3/4) ... [2019-10-22 10:17:16,088 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:17:16,129 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fb576863-1daf-485e-acdb-bd39633a866d/bin/ukojak/witness.graphml [2019-10-22 10:17:16,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:17:16,131 INFO L168 Benchmark]: Toolchain (without parser) took 1549.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -122.4 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:16,133 INFO L168 Benchmark]: CDTParser took 0.29 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 10:17:16,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -202.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:16,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.39 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:16,135 INFO L168 Benchmark]: Boogie Preprocessor took 23.05 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 10:17:16,137 INFO L168 Benchmark]: RCFGBuilder took 398.59 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:16,138 INFO L168 Benchmark]: CodeCheck took 542.68 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:16,138 INFO L168 Benchmark]: Witness Printer took 44.55 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 10:17:16,140 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, 17 locations, 5 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 10 SDslu, 4 SDs, 0 SdLazy, 38 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 539]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L526] int length = __VERIFIER_nondet_int(); [L527] int n = __VERIFIER_nondet_int(); [L528] int c = __VERIFIER_nondet_int(); [L529] COND FALSE !(length < 1) [L532] COND FALSE !(n < 1) [L535] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L537] int i = 0; [L537] COND TRUE i < length [L539] nondetArea[i] = __VERIFIER_nondet_char() [L537] i++ [L537] COND TRUE i < length [L539] nondetArea[i] = __VERIFIER_nondet_char() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 498.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -202.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.39 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.05 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 398.59 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * CodeCheck took 542.68 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * Witness Printer took 44.55 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. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...