./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01bf3c13fb8dbd0777aa4be7a3e595427bd1de37 ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 03:31:04,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:31:04,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:31:04,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:31:04,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:31:04,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:31:04,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:31:04,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:31:04,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:31:04,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:31:04,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:31:04,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:31:04,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:31:04,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:31:04,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:31:04,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:31:04,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:31:04,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:31:04,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:31:04,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:31:04,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:31:04,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:31:04,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:31:04,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:31:04,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:31:04,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:31:04,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:31:04,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:31:04,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:31:04,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:31:04,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:31:04,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:31:04,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:31:04,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:31:04,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:31:04,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:31:04,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:31:04,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:31:04,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:31:04,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:31:04,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:31:04,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 03:31:04,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:31:04,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:31:04,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:31:04,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:31:04,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:31:04,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:31:04,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:31:04,837 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 03:31:04,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:31:04,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:31:04,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:31:04,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:31:04,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:31:04,846 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 03:31:04,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:31:04,847 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:31:04,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:31:04,847 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:31:04,848 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:31:04,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:31:04,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:31:04,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:31:04,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:31:04,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:31:04,849 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:31:04,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:31:04,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:31:04,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01bf3c13fb8dbd0777aa4be7a3e595427bd1de37 [2021-10-13 03:31:05,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:31:05,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:31:05,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:31:05,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:31:05,169 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:31:05,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2021-10-13 03:31:05,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/data/f9d077f05/78ba123c469c4fe9ae4d1e0f3436feb4/FLAGe7c171c24 [2021-10-13 03:31:05,736 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:31:05,737 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2021-10-13 03:31:05,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/data/f9d077f05/78ba123c469c4fe9ae4d1e0f3436feb4/FLAGe7c171c24 [2021-10-13 03:31:06,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/data/f9d077f05/78ba123c469c4fe9ae4d1e0f3436feb4 [2021-10-13 03:31:06,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:31:06,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:31:06,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:31:06,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:31:06,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:31:06,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cdc8946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06, skipping insertion in model container [2021-10-13 03:31:06,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:31:06,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:31:06,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:31:06,366 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:31:06,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:31:06,401 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:31:06,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06 WrapperNode [2021-10-13 03:31:06,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:31:06,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:31:06,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:31:06,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:31:06,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:31:06,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:31:06,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:31:06,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:31:06,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:31:06,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:31:06,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:31:06,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:31:06,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:31:06" (1/1) ... [2021-10-13 03:31:06,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:31:06,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:31:06,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:31:06,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:31:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 03:31:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2021-10-13 03:31:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2021-10-13 03:31:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 03:31:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:31:06,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:31:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 03:31:07,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:31:07,022 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 03:31:07,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:31:07 BoogieIcfgContainer [2021-10-13 03:31:07,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:31:07,026 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:31:07,026 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:31:07,037 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:31:07,038 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:31:07" (1/1) ... [2021-10-13 03:31:07,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:31:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:31:07,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2021-10-13 03:31:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-10-13 03:31:07,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 03:31:07,088 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:31:07,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:31:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:31:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:31:07,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:31:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-10-13 03:31:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-10-13 03:31:07,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 03:31:07,314 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:31:07,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:31:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:31:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:31:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:31:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-10-13 03:31:07,458 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-13 03:31:07,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 03:31:07,458 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:31:07,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:31:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:31:07,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:31:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:31:07,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2021-10-13 03:31:07,525 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-10-13 03:31:07,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:31:07,525 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:31:07,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:31:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:31:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:31:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:31:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2021-10-13 03:31:07,735 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-10-13 03:31:07,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 03:31:07,741 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:31:07,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:31:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:31:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 03:31:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:31:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-10-13 03:31:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-13 03:31:07,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 03:31:07,900 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:31:07,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:31:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:31:07,925 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:31:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:31:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:31:08,061 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:31:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:31:08,124 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2021-10-13 03:31:08,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:31:08 ImpRootNode [2021-10-13 03:31:08,168 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:31:08,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:31:08,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:31:08,169 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:31:08,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:31:07" (3/4) ... [2021-10-13 03:31:08,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 03:31:08,215 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:31:08,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:31:08,217 INFO L168 Benchmark]: Toolchain (without parser) took 2087.19 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 72.4 MB in the beginning and 89.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-13 03:31:08,218 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory was 63.1 MB in the beginning and 63.1 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:31:08,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.65 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 81.6 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:31:08,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.44 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 79.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:31:08,220 INFO L168 Benchmark]: Boogie Preprocessor took 67.53 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 78.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:31:08,221 INFO L168 Benchmark]: RCFGBuilder took 510.64 ms. Allocated memory is still 107.0 MB. Free memory was 78.6 MB in the beginning and 64.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 03:31:08,222 INFO L168 Benchmark]: CodeCheck took 1142.22 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 64.5 MB in the beginning and 91.3 MB in the end (delta: -26.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:31:08,223 INFO L168 Benchmark]: Witness Printer took 46.42 ms. Allocated memory is still 136.3 MB. Free memory was 91.3 MB in the beginning and 89.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:31:08,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1067.0ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 84 SDtfs, 88 SDslu, 4 SDs, 0 SdLazy, 318 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 209.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 202.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 26.9ms SsaConstructionTime, 146.7ms SatisfiabilityAnalysisTime, 261.9ms InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L47] CALL build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND FALSE !(length < 1) VAL [length=868] [L17] EXPR length * sizeof(char) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L47] RET build_nondet_String() [L47] CALL build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND FALSE !(length < 1) VAL [length=12458] [L17] EXPR length * sizeof(char) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L47] RET build_nondet_String() [L28] unsigned char uc1, uc2; [L30] COND FALSE !(n == 0) [L33] n-- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory was 63.1 MB in the beginning and 63.1 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.65 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 81.6 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.44 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 79.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.53 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 78.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 510.64 ms. Allocated memory is still 107.0 MB. Free memory was 78.6 MB in the beginning and 64.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1142.22 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 64.5 MB in the beginning and 91.3 MB in the end (delta: -26.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 46.42 ms. Allocated memory is still 136.3 MB. Free memory was 91.3 MB in the beginning and 89.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 03:31:08,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff18612c-8832-40c4-bc3a-58d7ce4a86cb/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...