./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_21_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_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya --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 745137f2fc19e9cbc38af4fb69c31f980cf9afa203e1adc9caecf702edf2cf05 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:34:18,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:34:18,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 03:34:18,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:34:18,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:34:18,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:34:18,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:34:18,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:34:18,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:34:18,852 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:34:18,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:34:18,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:34:18,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:34:18,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:34:18,855 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:34:18,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:34:18,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:34:18,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:34:18,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:34:18,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:34:18,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:34:18,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:34:18,859 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:34:18,859 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:34:18,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:34:18,860 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:34:18,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:34:18,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:34:18,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:34:18,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:34:18,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:34:18,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:34:18,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:34:18,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:34:18,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:34:18,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:34:18,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:34:18,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:34:18,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:34:18,865 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:34:18,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:34:18,865 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_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 745137f2fc19e9cbc38af4fb69c31f980cf9afa203e1adc9caecf702edf2cf05 [2023-11-29 03:34:19,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:34:19,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:34:19,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:34:19,103 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:34:19,103 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:34:19,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i [2023-11-29 03:34:21,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:34:22,141 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:34:22,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i [2023-11-29 03:34:22,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data/5ba56f2d7/6cfc87170b6d405cb0e8f1c5466a9bc3/FLAG607b32c4b [2023-11-29 03:34:22,174 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data/5ba56f2d7/6cfc87170b6d405cb0e8f1c5466a9bc3 [2023-11-29 03:34:22,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:34:22,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:34:22,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:34:22,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:34:22,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:34:22,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:34:22" (1/1) ... [2023-11-29 03:34:22,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dd7c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:22, skipping insertion in model container [2023-11-29 03:34:22,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:34:22" (1/1) ... [2023-11-29 03:34:22,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:34:22,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:34:22,935 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:34:23,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:34:23,139 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:23,139 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:23,139 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:23,139 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:23,146 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:34:23,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23 WrapperNode [2023-11-29 03:34:23,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:34:23,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:34:23,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:34:23,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:34:23,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,201 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2023-11-29 03:34:23,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:34:23,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:34:23,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:34:23,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:34:23,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,216 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,229 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]. [2023-11-29 03:34:23,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:34:23,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:34:23,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:34:23,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:34:23,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (1/1) ... [2023-11-29 03:34:23,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:34:23,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:34:23,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:34:23,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:34:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 03:34:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 03:34:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:34:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 03:34:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 03:34:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:34:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:34:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:34:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:34:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 03:34:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 03:34:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 03:34:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:34:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 03:34:23,448 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:34:23,450 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:34:23,551 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:34:23,578 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:34:23,578 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 03:34:23,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:34:23 BoogieIcfgContainer [2023-11-29 03:34:23,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:34:23,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:34:23,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:34:23,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:34:23,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:34:22" (1/3) ... [2023-11-29 03:34:23,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e18caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:34:23, skipping insertion in model container [2023-11-29 03:34:23,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:23" (2/3) ... [2023-11-29 03:34:23,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e18caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:34:23, skipping insertion in model container [2023-11-29 03:34:23,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:34:23" (3/3) ... [2023-11-29 03:34:23,587 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i [2023-11-29 03:34:23,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:34:23,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 03:34:23,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:34:23,656 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;@499567c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:34:23,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 03:34:23,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 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) [2023-11-29 03:34:23,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:34:23,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:23,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:34:23,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 03:34:23,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:23,675 INFO L85 PathProgramCache]: Analyzing trace with hash -724629884, now seen corresponding path program 1 times [2023-11-29 03:34:23,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:23,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837702523] [2023-11-29 03:34:23,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:23,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:34:23,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:34:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:34:23,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:34:23,869 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:34:23,870 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 03:34:23,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 03:34:23,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:34:23,876 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 03:34:23,879 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:34:23,893 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-29 03:34:23,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:34:23 BoogieIcfgContainer [2023-11-29 03:34:23,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:34:23,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:34:23,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:34:23,902 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:34:23,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:34:23" (3/4) ... [2023-11-29 03:34:23,905 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:34:23,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:34:23,907 INFO L158 Benchmark]: Toolchain (without parser) took 1729.11ms. Allocated memory is still 188.7MB. Free memory was 149.2MB in the beginning and 99.5MB in the end (delta: 49.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2023-11-29 03:34:23,907 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:34:23,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 968.30ms. Allocated memory is still 188.7MB. Free memory was 149.2MB in the beginning and 137.3MB in the end (delta: 11.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2023-11-29 03:34:23,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.08ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:34:23,909 INFO L158 Benchmark]: Boogie Preprocessor took 37.79ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:34:23,910 INFO L158 Benchmark]: RCFGBuilder took 338.33ms. Allocated memory is still 188.7MB. Free memory was 132.0MB in the beginning and 117.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 03:34:23,910 INFO L158 Benchmark]: TraceAbstraction took 320.15ms. Allocated memory is still 188.7MB. Free memory was 117.3MB in the beginning and 99.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:34:23,911 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 188.7MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:34:23,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 968.30ms. Allocated memory is still 188.7MB. Free memory was 149.2MB in the beginning and 137.3MB in the end (delta: 11.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.08ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.79ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.33ms. Allocated memory is still 188.7MB. Free memory was 132.0MB in the beginning and 117.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 320.15ms. Allocated memory is still 188.7MB. Free memory was 117.3MB in the beginning and 99.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 188.7MB. Free memory is still 99.5MB. 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~nondet102 - 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: 1555]: 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 1571. 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); [L1548] static int badStatic = 0; [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] 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}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fscanf_multiply_21_bad() [L1562] int data; [L1563] data = 0 [L1565] badStatic = 1 [L1566] EXPR \read(data) [L1566] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, badStatic=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, badStatic=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, badStatic=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=17occurred 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, 10 NumberOfCodeBlocks, 10 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 [2023-11-29 03:34:23,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya --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 745137f2fc19e9cbc38af4fb69c31f980cf9afa203e1adc9caecf702edf2cf05 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:34:25,820 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:34:25,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 03:34:25,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:34:25,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:34:25,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 03:34:25,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:34:25,927 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:34:25,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:34:25,928 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:34:25,929 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:34:25,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:34:25,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:34:25,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:34:25,931 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:34:25,932 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:34:25,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:34:25,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:34:25,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:34:25,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:34:25,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:34:25,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:34:25,935 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:34:25,935 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:34:25,936 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:34:25,936 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:34:25,937 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:34:25,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:34:25,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:34:25,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:34:25,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:34:25,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:34:25,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:34:25,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:34:25,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:34:25,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:34:25,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:34:25,940 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:34:25,940 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:34:25,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:34:25,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:34:25,941 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:34:25,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:34:25,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:34:25,941 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:34:25,941 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_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 745137f2fc19e9cbc38af4fb69c31f980cf9afa203e1adc9caecf702edf2cf05 [2023-11-29 03:34:26,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:34:26,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:34:26,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:34:26,229 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:34:26,229 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:34:26,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i [2023-11-29 03:34:28,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:34:29,271 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:34:29,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i [2023-11-29 03:34:29,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data/97e73da75/b1b54ae8e46b490da1d85e89fb4ea572/FLAGfb84e87ab [2023-11-29 03:34:29,309 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/data/97e73da75/b1b54ae8e46b490da1d85e89fb4ea572 [2023-11-29 03:34:29,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:34:29,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:34:29,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:34:29,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:34:29,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:34:29,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:34:29" (1/1) ... [2023-11-29 03:34:29,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d54eaea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:29, skipping insertion in model container [2023-11-29 03:34:29,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:34:29" (1/1) ... [2023-11-29 03:34:29,389 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:34:30,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:34:30,083 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:34:30,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:34:30,293 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:30,293 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:30,293 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:30,293 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:34:30,299 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:34:30,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30 WrapperNode [2023-11-29 03:34:30,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:34:30,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:34:30,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:34:30,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:34:30,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,372 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2023-11-29 03:34:30,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:34:30,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:34:30,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:34:30,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:34:30,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,402 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]. [2023-11-29 03:34:30,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:34:30,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:34:30,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:34:30,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:34:30,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (1/1) ... [2023-11-29 03:34:30,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:34:30,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:34:30,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:34:30,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:34:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 03:34:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 03:34:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:34:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:34:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 03:34:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:34:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:34:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:34:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 03:34:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 03:34:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:34:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 03:34:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 03:34:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 03:34:30,659 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:34:30,662 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:34:30,807 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:34:30,839 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:34:30,839 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 03:34:30,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:34:30 BoogieIcfgContainer [2023-11-29 03:34:30,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:34:30,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:34:30,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:34:30,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:34:30,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:34:29" (1/3) ... [2023-11-29 03:34:30,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe170f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:34:30, skipping insertion in model container [2023-11-29 03:34:30,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:34:30" (2/3) ... [2023-11-29 03:34:30,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe170f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:34:30, skipping insertion in model container [2023-11-29 03:34:30,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:34:30" (3/3) ... [2023-11-29 03:34:30,848 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_21_bad.i [2023-11-29 03:34:30,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:34:30,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 03:34:30,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:34:30,920 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;@ae8112, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:34:30,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 03:34:30,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 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) [2023-11-29 03:34:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:34:30,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:30,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:34:30,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 03:34:30,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:30,938 INFO L85 PathProgramCache]: Analyzing trace with hash -724629884, now seen corresponding path program 1 times [2023-11-29 03:34:30,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:34:30,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451343109] [2023-11-29 03:34:30,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:30,952 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 [2023-11-29 03:34:30,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:34:30,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 03:34:30,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:34:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:34:31,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:34:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:34:31,183 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 03:34:31,185 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:34:31,186 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 03:34:31,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 03:34:31,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:34:31,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:34:31,393 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 03:34:31,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:34:31,409 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-29 03:34:31,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:34:31 BoogieIcfgContainer [2023-11-29 03:34:31,420 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:34:31,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:34:31,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:34:31,421 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:34:31,422 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:34:30" (3/4) ... [2023-11-29 03:34:31,424 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:34:31,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:34:31,426 INFO L158 Benchmark]: Toolchain (without parser) took 2111.88ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 39.1MB in the beginning and 66.3MB in the end (delta: -27.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:34:31,426 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:34:31,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 984.55ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 38.9MB in the beginning and 45.8MB in the end (delta: -6.9MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-11-29 03:34:31,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.55ms. Allocated memory is still 102.8MB. Free memory was 45.8MB in the beginning and 73.1MB in the end (delta: -27.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-29 03:34:31,429 INFO L158 Benchmark]: Boogie Preprocessor took 50.61ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 70.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:34:31,429 INFO L158 Benchmark]: RCFGBuilder took 414.63ms. Allocated memory is still 102.8MB. Free memory was 70.5MB in the beginning and 54.2MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:34:31,430 INFO L158 Benchmark]: TraceAbstraction took 578.44ms. Allocated memory is still 102.8MB. Free memory was 53.7MB in the beginning and 67.0MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:34:31,430 INFO L158 Benchmark]: Witness Printer took 3.85ms. Allocated memory is still 102.8MB. Free memory was 67.0MB in the beginning and 66.3MB in the end (delta: 658.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:34:31,433 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 984.55ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 38.9MB in the beginning and 45.8MB in the end (delta: -6.9MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.55ms. Allocated memory is still 102.8MB. Free memory was 45.8MB in the beginning and 73.1MB in the end (delta: -27.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.61ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 70.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.63ms. Allocated memory is still 102.8MB. Free memory was 70.5MB in the beginning and 54.2MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 578.44ms. Allocated memory is still 102.8MB. Free memory was 53.7MB in the beginning and 67.0MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.85ms. Allocated memory is still 102.8MB. Free memory was 67.0MB in the beginning and 66.3MB in the end (delta: 658.9kB). 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~nondet100 - 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: 1555]: 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 1571. 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); [L1548] static int badStatic = 0; [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] 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}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fscanf_multiply_21_bad() [L1562] int data; [L1563] data = 0 [L1565] badStatic = 1 [L1566] EXPR \read(data) [L1566] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=17occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 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 [2023-11-29 03:34:31,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9565774f-78bf-4197-9edc-26a01ccef18c/bin/uautomizer-verify-BQ2R08f2Ya/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