./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ada951d548b1b678afb72d57ffa5c89b26ef0de42da0942c466d9ff643802b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:55:01,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:55:01,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:55:01,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:55:01,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:55:01,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:55:01,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:55:01,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:55:01,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:55:01,867 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:55:01,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:55:01,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:55:01,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:55:01,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:55:01,871 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:55:01,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:55:01,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:55:01,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:55:01,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:55:01,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:55:01,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:55:01,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:55:01,876 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:55:01,876 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:55:01,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:55:01,877 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:55:01,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:55:01,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:55:01,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:55:01,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:55:01,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:55:01,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:55:01,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:55:01,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:55:01,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:55:01,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:55:01,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:55:01,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:55:01,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:55:01,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:55:01,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:55:01,894 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ada951d548b1b678afb72d57ffa5c89b26ef0de42da0942c466d9ff643802b0 [2023-11-26 11:55:02,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:55:02,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:55:02,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:55:02,211 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:55:02,212 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:55:02,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i [2023-11-26 11:55:05,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:55:05,882 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:55:05,887 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i [2023-11-26 11:55:05,917 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data/75e267ff9/6aa744cb1fb94c22a7040f7e128e36f8/FLAGcef699969 [2023-11-26 11:55:05,936 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data/75e267ff9/6aa744cb1fb94c22a7040f7e128e36f8 [2023-11-26 11:55:05,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:55:05,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:55:05,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:05,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:55:05,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:55:05,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:05" (1/1) ... [2023-11-26 11:55:05,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9c0655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:05, skipping insertion in model container [2023-11-26 11:55:05,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:05" (1/1) ... [2023-11-26 11:55:06,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:55:07,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:07,145 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:55:07,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:07,518 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:07,518 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:07,519 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:07,519 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:07,528 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:55:07,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07 WrapperNode [2023-11-26 11:55:07,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:07,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:07,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:55:07,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:55:07,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,608 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2023-11-26 11:55:07,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:07,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:55:07,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:55:07,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:55:07,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,651 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-26 11:55:07,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:55:07,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:55:07,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:55:07,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:55:07,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (1/1) ... [2023-11-26 11:55:07,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:55:07,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:55:07,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:55:07,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:55:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 11:55:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 11:55:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:55:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:55:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:55:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:55:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:55:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:55:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:55:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 11:55:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:55:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:55:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:55:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:55:07,956 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:55:07,959 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:55:08,102 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:55:08,143 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:55:08,144 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:55:08,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:08 BoogieIcfgContainer [2023-11-26 11:55:08,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:55:08,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:55:08,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:55:08,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:55:08,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:55:05" (1/3) ... [2023-11-26 11:55:08,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c52a1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:08, skipping insertion in model container [2023-11-26 11:55:08,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:07" (2/3) ... [2023-11-26 11:55:08,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c52a1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:08, skipping insertion in model container [2023-11-26 11:55:08,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:08" (3/3) ... [2023-11-26 11:55:08,155 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i [2023-11-26 11:55:08,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:55:08,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:55:08,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:55:08,228 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14af0c66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:55:08,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 11:55:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:55:08,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 11:55:08,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:55:08,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:55:08,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:55:08,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:08,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-26 11:55:08,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:08,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816941339] [2023-11-26 11:55:08,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:08,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:55:08,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:55:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:55:08,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:55:08,495 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:55:08,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 11:55:08,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 11:55:08,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:55:08,516 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 11:55:08,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:55:08,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-26 11:55:08,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post104 could not be translated [2023-11-26 11:55:08,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:55:08 BoogieIcfgContainer [2023-11-26 11:55:08,559 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:55:08,561 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:55:08,561 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:55:08,562 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:55:08,562 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:08" (3/4) ... [2023-11-26 11:55:08,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:55:08,566 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:55:08,567 INFO L158 Benchmark]: Toolchain (without parser) took 2623.01ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 104.2MB in the beginning and 122.7MB in the end (delta: -18.4MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-11-26 11:55:08,568 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory was 114.3MB in the beginning and 114.1MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:55:08,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1583.76ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 103.8MB in the beginning and 161.5MB in the end (delta: -57.7MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2023-11-26 11:55:08,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.99ms. Allocated memory is still 205.5MB. Free memory was 161.5MB in the beginning and 158.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:55:08,578 INFO L158 Benchmark]: Boogie Preprocessor took 84.92ms. Allocated memory is still 205.5MB. Free memory was 158.3MB in the beginning and 156.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:55:08,580 INFO L158 Benchmark]: RCFGBuilder took 449.07ms. Allocated memory is still 205.5MB. Free memory was 156.2MB in the beginning and 141.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:55:08,581 INFO L158 Benchmark]: TraceAbstraction took 411.29ms. Allocated memory is still 205.5MB. Free memory was 140.5MB in the beginning and 123.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:55:08,582 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 205.5MB. Free memory was 122.7MB in the beginning and 122.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:55:08,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory was 114.3MB in the beginning and 114.1MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1583.76ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 103.8MB in the beginning and 161.5MB in the end (delta: -57.7MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.99ms. Allocated memory is still 205.5MB. Free memory was 161.5MB in the beginning and 158.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.92ms. Allocated memory is still 205.5MB. Free memory was 158.3MB in the beginning and 156.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.07ms. Allocated memory is still 205.5MB. Free memory was 156.2MB in the beginning and 141.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 411.29ms. Allocated memory is still 205.5MB. Free memory was 140.5MB in the beginning and 123.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 205.5MB. Free memory was 122.7MB in the beginning and 122.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet101 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post104 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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); [L1559] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741828:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_fscanf_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] CALL CWE191_Integer_Underflow__int_fscanf_postdec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataVoidPtr={5:0}, dataVoidPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 11:55:08,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ada951d548b1b678afb72d57ffa5c89b26ef0de42da0942c466d9ff643802b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:55:11,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:55:11,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 11:55:11,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:55:11,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:55:11,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 11:55:11,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:55:11,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:55:11,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:55:11,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:55:11,680 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:55:11,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:55:11,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:55:11,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:55:11,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:55:11,684 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:55:11,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:55:11,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:55:11,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:55:11,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:55:11,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:55:11,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:55:11,689 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:55:11,690 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:55:11,690 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:55:11,691 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:55:11,691 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:55:11,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:55:11,692 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:55:11,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:55:11,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:55:11,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:55:11,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:55:11,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:55:11,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:55:11,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:55:11,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:55:11,698 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:55:11,698 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:55:11,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:55:11,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:55:11,699 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:55:11,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:55:11,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:55:11,700 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:55:11,710 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ada951d548b1b678afb72d57ffa5c89b26ef0de42da0942c466d9ff643802b0 [2023-11-26 11:55:12,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:55:12,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:55:12,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:55:12,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:55:12,193 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:55:12,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i [2023-11-26 11:55:15,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:55:15,799 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:55:15,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i [2023-11-26 11:55:15,828 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data/5834d516a/00febf90d5ff4fa2a1c4ff97bb45f414/FLAG3f9327b53 [2023-11-26 11:55:15,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/data/5834d516a/00febf90d5ff4fa2a1c4ff97bb45f414 [2023-11-26 11:55:15,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:55:15,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:55:15,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:15,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:55:15,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:55:15,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:15" (1/1) ... [2023-11-26 11:55:15,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401f32e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15, skipping insertion in model container [2023-11-26 11:55:15,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:15" (1/1) ... [2023-11-26 11:55:15,930 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:55:17,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:17,206 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 11:55:17,226 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:55:17,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:17,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:55:17,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:17,605 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:17,605 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:17,605 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:17,605 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:17,614 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:55:17,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17 WrapperNode [2023-11-26 11:55:17,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:17,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:17,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:55:17,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:55:17,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,723 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2023-11-26 11:55:17,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:17,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:55:17,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:55:17,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:55:17,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,768 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-26 11:55:17,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:55:17,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:55:17,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:55:17,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:55:17,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (1/1) ... [2023-11-26 11:55:17,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:55:17,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:55:17,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:55:17,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:55:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 11:55:17,925 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 11:55:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:55:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:55:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 11:55:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:55:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:55:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:55:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 11:55:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 11:55:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:55:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 11:55:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 11:55:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 11:55:18,128 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:55:18,131 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:55:18,513 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:55:18,564 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:55:18,565 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:55:18,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:18 BoogieIcfgContainer [2023-11-26 11:55:18,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:55:18,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:55:18,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:55:18,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:55:18,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:55:15" (1/3) ... [2023-11-26 11:55:18,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d82c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:18, skipping insertion in model container [2023-11-26 11:55:18,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:17" (2/3) ... [2023-11-26 11:55:18,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d82c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:18, skipping insertion in model container [2023-11-26 11:55:18,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:18" (3/3) ... [2023-11-26 11:55:18,574 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_64_bad.i [2023-11-26 11:55:18,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:55:18,594 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:55:18,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:55:18,641 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3cb7f851, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:55:18,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 11:55:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:55:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 11:55:18,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:55:18,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:55:18,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:55:18,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:18,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-26 11:55:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:55:18,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360755308] [2023-11-26 11:55:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:18,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:55:18,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:55:18,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:55:18,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 11:55:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:55:19,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:55:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:55:19,242 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 11:55:19,246 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:55:19,248 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 11:55:19,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 11:55:19,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:55:19,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:55:19,455 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 11:55:19,459 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:55:19,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet99 [2023-11-26 11:55:19,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated [2023-11-26 11:55:19,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:55:19 BoogieIcfgContainer [2023-11-26 11:55:19,492 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:55:19,495 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:55:19,496 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:55:19,496 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:55:19,497 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:18" (3/4) ... [2023-11-26 11:55:19,499 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:55:19,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:55:19,502 INFO L158 Benchmark]: Toolchain (without parser) took 3653.60ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 56.0MB in the beginning and 50.7MB in the end (delta: 5.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-26 11:55:19,503 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 87.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:55:19,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1765.49ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 55.8MB in the beginning and 57.6MB in the end (delta: -1.8MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2023-11-26 11:55:19,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.00ms. Allocated memory is still 115.3MB. Free memory was 57.6MB in the beginning and 54.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:55:19,512 INFO L158 Benchmark]: Boogie Preprocessor took 102.68ms. Allocated memory is still 115.3MB. Free memory was 54.5MB in the beginning and 89.3MB in the end (delta: -34.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2023-11-26 11:55:19,513 INFO L158 Benchmark]: RCFGBuilder took 737.30ms. Allocated memory is still 115.3MB. Free memory was 89.3MB in the beginning and 72.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:55:19,515 INFO L158 Benchmark]: TraceAbstraction took 924.28ms. Allocated memory is still 115.3MB. Free memory was 71.7MB in the beginning and 50.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 11:55:19,515 INFO L158 Benchmark]: Witness Printer took 5.39ms. Allocated memory is still 115.3MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:55:19,525 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 87.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1765.49ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 55.8MB in the beginning and 57.6MB in the end (delta: -1.8MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.00ms. Allocated memory is still 115.3MB. Free memory was 57.6MB in the beginning and 54.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.68ms. Allocated memory is still 115.3MB. Free memory was 54.5MB in the beginning and 89.3MB in the end (delta: -34.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * RCFGBuilder took 737.30ms. Allocated memory is still 115.3MB. Free memory was 89.3MB in the beginning and 72.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 924.28ms. Allocated memory is still 115.3MB. Free memory was 71.7MB in the beginning and 50.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.39ms. Allocated memory is still 115.3MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet99 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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); [L1559] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_fscanf_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] CALL CWE191_Integer_Underflow__int_fscanf_postdec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={7:0}, dataVoidPtr={7:0}, dataVoidPtr={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 11:55:19,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff1cd4-36f9-4e6f-bcf1-1e69fe741902/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample