./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg --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 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 23:55:20,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:55:20,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:55:20,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:55:20,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:55:20,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:55:20,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:55:20,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:55:20,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:55:20,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:55:20,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:55:20,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:55:20,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:55:20,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:55:20,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:55:20,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:55:20,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:55:20,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:55:20,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:55:20,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:55:20,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:55:20,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:55:20,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:55:20,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:55:20,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:55:20,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:55:20,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:55:20,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:55:20,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:55:20,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:55:20,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:55:20,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:55:20,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:55:20,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:55:20,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:55:20,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:55:20,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:55:20,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:55:20,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:55:20,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:55:20,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:55:20,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:55:20,770 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:55:20,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:55:20,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:55:20,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:55:20,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:55:20,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:55:20,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:55:20,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:55:20,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:55:20,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:55:20,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:55:20,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:55:20,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:55:20,776 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:55:20,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:55:20,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:55:20,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:55:20,777 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:55:20,777 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:55:20,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:55:20,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:55:20,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:55:20,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:55:20,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:55:20,779 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:55:20,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:55:20,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:55:20,779 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_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 [2022-11-21 23:55:21,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:55:21,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:55:21,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:55:21,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:55:21,103 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:55:21,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2022-11-21 23:55:24,195 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:55:24,688 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:55:24,689 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2022-11-21 23:55:24,714 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data/4170f917f/e09bffd5e5a84c1388429960ef304d35/FLAGabafe7481 [2022-11-21 23:55:24,730 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data/4170f917f/e09bffd5e5a84c1388429960ef304d35 [2022-11-21 23:55:24,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:55:24,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:55:24,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:55:24,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:55:24,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:55:24,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:55:24" (1/1) ... [2022-11-21 23:55:24,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd1a222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:24, skipping insertion in model container [2022-11-21 23:55:24,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:55:24" (1/1) ... [2022-11-21 23:55:24,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:55:24,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:55:25,212 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:55:25,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:55:25,757 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:55:25,780 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:55:25,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:55:25,973 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:55:25,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25 WrapperNode [2022-11-21 23:55:25,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:55:25,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:55:25,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:55:25,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:55:25,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,054 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-11-21 23:55:26,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:55:26,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:55:26,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:55:26,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:55:26,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,100 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:55:26,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:55:26,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:55:26,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:55:26,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:25" (1/1) ... [2022-11-21 23:55:26,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:55:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:55:26,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:55:26,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:55:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 23:55:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 23:55:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 23:55:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:55:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 23:55:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:55:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:55:26,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:55:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 23:55:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 23:55:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:55:26,340 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:55:26,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:55:26,478 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:55:26,554 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:55:26,555 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 23:55:26,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:55:26 BoogieIcfgContainer [2022-11-21 23:55:26,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:55:26,558 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:55:26,559 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:55:26,568 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:55:26,569 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:55:26" (1/1) ... [2022-11-21 23:55:26,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:55:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:55:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2022-11-21 23:55:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-21 23:55:26,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:55:26,630 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:55:26,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:55:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:55:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:55:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:55:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2022-11-21 23:55:27,042 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-21 23:55:27,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 23:55:27,043 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:55:27,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:55:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:55:27,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:55:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:55:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:55:27,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:55:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:55:27,290 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-21 23:55:27,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:55:27 ImpRootNode [2022-11-21 23:55:27,345 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:55:27,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:55:27,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:55:27,350 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:55:27,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:55:26" (3/4) ... [2022-11-21 23:55:27,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 23:55:27,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:55:27,360 INFO L158 Benchmark]: Toolchain (without parser) took 2621.92ms. Allocated memory is still 188.7MB. Free memory was 152.0MB in the beginning and 117.8MB in the end (delta: 34.1MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2022-11-21 23:55:27,360 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 142.6MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:55:27,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1234.65ms. Allocated memory is still 188.7MB. Free memory was 151.3MB in the beginning and 89.1MB in the end (delta: 62.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-21 23:55:27,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.27ms. Allocated memory is still 188.7MB. Free memory was 89.1MB in the beginning and 86.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:55:27,362 INFO L158 Benchmark]: Boogie Preprocessor took 47.80ms. Allocated memory is still 188.7MB. Free memory was 86.4MB in the beginning and 157.4MB in the end (delta: -71.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-21 23:55:27,364 INFO L158 Benchmark]: RCFGBuilder took 453.83ms. Allocated memory is still 188.7MB. Free memory was 157.3MB in the beginning and 146.2MB in the end (delta: 11.2MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-11-21 23:55:27,364 INFO L158 Benchmark]: CodeCheck took 786.50ms. Allocated memory is still 188.7MB. Free memory was 145.1MB in the beginning and 117.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-21 23:55:27,365 INFO L158 Benchmark]: Witness Printer took 13.37ms. Allocated memory is still 188.7MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:55:27,370 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1572] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [\old(argc)=18, argc=18, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE191_Integer_Underflow__int_fgets_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 142.6MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1234.65ms. Allocated memory is still 188.7MB. Free memory was 151.3MB in the beginning and 89.1MB in the end (delta: 62.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.27ms. Allocated memory is still 188.7MB. Free memory was 89.1MB in the beginning and 86.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.80ms. Allocated memory is still 188.7MB. Free memory was 86.4MB in the beginning and 157.4MB in the end (delta: -71.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * RCFGBuilder took 453.83ms. Allocated memory is still 188.7MB. Free memory was 157.3MB in the beginning and 146.2MB in the end (delta: 11.2MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * CodeCheck took 786.50ms. Allocated memory is still 188.7MB. Free memory was 145.1MB in the beginning and 117.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 13.37ms. Allocated memory is still 188.7MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 23:55:27,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg --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 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 23:55:29,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:55:29,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:55:30,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:55:30,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:55:30,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:55:30,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:55:30,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:55:30,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:55:30,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:55:30,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:55:30,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:55:30,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:55:30,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:55:30,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:55:30,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:55:30,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:55:30,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:55:30,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:55:30,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:55:30,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:55:30,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:55:30,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:55:30,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:55:30,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:55:30,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:55:30,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:55:30,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:55:30,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:55:30,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:55:30,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:55:30,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:55:30,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:55:30,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:55:30,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:55:30,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:55:30,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:55:30,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:55:30,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:55:30,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:55:30,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:55:30,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2022-11-21 23:55:30,128 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:55:30,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:55:30,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:55:30,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:55:30,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:55:30,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:55:30,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:55:30,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:55:30,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:55:30,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:55:30,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:55:30,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:55:30,132 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 23:55:30,132 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 23:55:30,132 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:55:30,133 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 23:55:30,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:55:30,133 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:55:30,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:55:30,134 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:55:30,134 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:55:30,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:55:30,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:55:30,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:55:30,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:55:30,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:55:30,135 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-21 23:55:30,135 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 23:55:30,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:55:30,136 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-21 23:55:30,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 23:55:30,136 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 [2022-11-21 23:55:30,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:55:30,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:55:30,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:55:30,528 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:55:30,529 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:55:30,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2022-11-21 23:55:33,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:55:34,080 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:55:34,081 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2022-11-21 23:55:34,122 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data/904fe51e2/adcb0bc71075479789351f8d4bdb5dd4/FLAGaaec0e25e [2022-11-21 23:55:34,143 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a089269d-0e09-4813-aa12-cf7495d7db69/bin/ukojak-jW3SillKbg/data/904fe51e2/adcb0bc71075479789351f8d4bdb5dd4 [2022-11-21 23:55:34,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:55:34,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:55:34,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:55:34,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:55:34,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:55:34,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:55:34" (1/1) ... [2022-11-21 23:55:34,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b073dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:55:34, skipping insertion in model container [2022-11-21 23:55:34,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:55:34" (1/1) ... [2022-11-21 23:55:34,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:55:34,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:55:34,620 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:55:34,878 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.TypeHandler.visit(TypeHandler.java:357) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-21 23:55:34,883 INFO L158 Benchmark]: Toolchain (without parser) took 734.28ms. Allocated memory is still 73.4MB. Free memory was 46.0MB in the beginning and 30.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 23:55:34,883 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:55:34,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.44ms. Allocated memory is still 73.4MB. Free memory was 45.8MB in the beginning and 30.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 23:55:34,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.44ms. Allocated memory is still 73.4MB. Free memory was 45.8MB in the beginning and 30.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.