./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 fa5836aa0af18082c369b87af434906a3830fe9d29b8b61fdf47f6b10fed1171 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:20:41,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:20:41,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-28 20:20:41,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:20:41,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:20:41,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:20:41,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:20:41,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:20:41,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:20:41,175 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:20:41,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:20:41,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:20:41,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:20:41,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:20:41,178 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:20:41,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:20:41,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:20:41,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:20:41,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:20:41,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:20:41,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:20:41,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:20:41,184 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:20:41,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:20:41,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:20:41,185 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:20:41,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:20:41,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:20:41,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:20:41,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:20:41,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:20:41,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:20:41,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:20:41,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:20:41,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:20:41,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:20:41,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:20:41,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:20:41,188 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:20:41,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:20:41,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:20:41,189 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_1e1e09da-e1b0-4e27-9395-d6386fed9203/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa5836aa0af18082c369b87af434906a3830fe9d29b8b61fdf47f6b10fed1171 [2023-11-28 20:20:41,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:20:41,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:20:41,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:20:41,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:20:41,436 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:20:41,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i [2023-11-28 20:20:44,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:20:44,708 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:20:44,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i [2023-11-28 20:20:44,733 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data/0ff94bc7f/c280a9a6cbd549d28bc448f19bca23cb/FLAG21abfa73c [2023-11-28 20:20:44,747 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data/0ff94bc7f/c280a9a6cbd549d28bc448f19bca23cb [2023-11-28 20:20:44,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:20:44,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:20:44,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:20:44,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:20:44,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:20:44,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:44" (1/1) ... [2023-11-28 20:20:44,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8d8802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44, skipping insertion in model container [2023-11-28 20:20:44,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:44" (1/1) ... [2023-11-28 20:20:44,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:20:45,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:20:45,653 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:20:45,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:20:45,864 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:45,865 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:45,865 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:45,865 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:45,873 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:20:45,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45 WrapperNode [2023-11-28 20:20:45,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:20:45,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:20:45,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:20:45,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:20:45,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,943 INFO L138 Inliner]: procedures = 498, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-28 20:20:45,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:20:45,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:20:45,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:20:45,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:20:45,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,986 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [1, 5]. 83 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 3 writes are split as follows [0, 3]. [2023-11-28 20:20:45,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:45,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:46,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:20:46,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:20:46,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:20:46,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:20:46,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (1/1) ... [2023-11-28 20:20:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:20:46,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:20:46,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:20:46,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:20:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-28 20:20:46,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-28 20:20:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:20:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 20:20:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 20:20:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:20:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:20:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:20:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:20:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-28 20:20:46,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:20:46,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:20:46,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:20:46,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:20:46,225 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:20:46,227 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:20:46,349 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:20:46,379 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:20:46,380 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:20:46,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:46 BoogieIcfgContainer [2023-11-28 20:20:46,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:20:46,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:20:46,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:20:46,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:20:46,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:20:44" (1/3) ... [2023-11-28 20:20:46,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6697c644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:46, skipping insertion in model container [2023-11-28 20:20:46,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:45" (2/3) ... [2023-11-28 20:20:46,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6697c644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:46, skipping insertion in model container [2023-11-28 20:20:46,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:46" (3/3) ... [2023-11-28 20:20:46,391 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i [2023-11-28 20:20:46,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:20:46,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-28 20:20:46,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:20:46,470 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;@76be4e73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:20:46,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-28 20:20:46,475 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) [2023-11-28 20:20:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:20:46,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:20:46,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:20:46,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-28 20:20:46,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:20:46,491 INFO L85 PathProgramCache]: Analyzing trace with hash -921141371, now seen corresponding path program 1 times [2023-11-28 20:20:46,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:20:46,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914753779] [2023-11-28 20:20:46,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:20:46,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:20:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:20:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:20:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:20:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:20:46,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:20:46,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914753779] [2023-11-28 20:20:46,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914753779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:20:46,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:20:46,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:20:46,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216947354] [2023-11-28 20:20:46,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:20:46,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:20:46,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:20:46,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:20:46,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:20:46,810 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:20:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:20:46,840 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-11-28 20:20:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:20:46,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-28 20:20:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:20:46,847 INFO L225 Difference]: With dead ends: 30 [2023-11-28 20:20:46,848 INFO L226 Difference]: Without dead ends: 13 [2023-11-28 20:20:46,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:20:46,853 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:20:46,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:20:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-28 20:20:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-28 20:20:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:20:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-28 20:20:46,880 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2023-11-28 20:20:46,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:20:46,881 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-28 20:20:46,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:20:46,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-28 20:20:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:20:46,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:20:46,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:20:46,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:20:46,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-28 20:20:46,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:20:46,884 INFO L85 PathProgramCache]: Analyzing trace with hash -921143293, now seen corresponding path program 1 times [2023-11-28 20:20:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:20:46,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25232383] [2023-11-28 20:20:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:20:46,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:20:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:20:46,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:20:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:20:46,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:20:46,975 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:20:46,976 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-28 20:20:46,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-28 20:20:46,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:20:46,980 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-28 20:20:46,983 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:20:46,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-11-28 20:20:46,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-28 20:20:47,000 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-28 20:20:47,000 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-28 20:20:47,001 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-28 20:20:47,001 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-28 20:20:47,001 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-28 20:20:47,002 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-28 20:20:47,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:20:47 BoogieIcfgContainer [2023-11-28 20:20:47,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:20:47,010 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:20:47,010 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:20:47,010 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:20:47,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:46" (3/4) ... [2023-11-28 20:20:47,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:20:47,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:20:47,014 INFO L158 Benchmark]: Toolchain (without parser) took 2262.52ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 112.4MB in the beginning and 98.2MB in the end (delta: 14.3MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2023-11-28 20:20:47,014 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:20:47,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1121.38ms. Allocated memory is still 148.9MB. Free memory was 112.4MB in the beginning and 48.9MB in the end (delta: 63.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-28 20:20:47,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.76ms. Allocated memory is still 148.9MB. Free memory was 48.9MB in the beginning and 115.1MB in the end (delta: -66.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-28 20:20:47,016 INFO L158 Benchmark]: Boogie Preprocessor took 55.98ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 115.1MB in the beginning and 148.5MB in the end (delta: -33.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 20:20:47,017 INFO L158 Benchmark]: RCFGBuilder took 380.26ms. Allocated memory is still 180.4MB. Free memory was 147.5MB in the beginning and 133.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-28 20:20:47,017 INFO L158 Benchmark]: TraceAbstraction took 625.86ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 99.2MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-28 20:20:47,018 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 180.4MB. Free memory was 99.2MB in the beginning and 98.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:20:47,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1121.38ms. Allocated memory is still 148.9MB. Free memory was 112.4MB in the beginning and 48.9MB in the end (delta: 63.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.76ms. Allocated memory is still 148.9MB. Free memory was 48.9MB in the beginning and 115.1MB in the end (delta: -66.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.98ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 115.1MB in the beginning and 148.5MB in the end (delta: -33.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 380.26ms. Allocated memory is still 180.4MB. Free memory was 147.5MB in the beginning and 133.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 625.86ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 99.2MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 180.4MB. Free memory was 99.2MB in the beginning and 98.2MB in the end (delta: 1.0MB). 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~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 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: 1560]: 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 1569. 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 staticFive = 5; [L1569] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741826, argc=1073741826, argv={1073741829:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1570] CALL CWE191_Integer_Underflow__int_fscanf_predec_07_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1553] COND TRUE staticFive==5 [L1557] COND TRUE staticFive==5 [L1560] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1560] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - UnprovableResult [Line: 1560]: 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: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2023-11-28 20:20:47,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 fa5836aa0af18082c369b87af434906a3830fe9d29b8b61fdf47f6b10fed1171 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:20:48,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:20:49,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-28 20:20:49,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:20:49,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:20:49,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-28 20:20:49,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:20:49,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:20:49,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:20:49,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:20:49,069 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:20:49,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:20:49,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:20:49,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:20:49,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:20:49,072 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:20:49,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:20:49,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:20:49,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:20:49,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:20:49,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:20:49,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:20:49,075 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:20:49,075 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:20:49,075 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:20:49,076 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:20:49,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:20:49,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:20:49,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:20:49,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:20:49,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:20:49,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:20:49,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:20:49,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:20:49,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:20:49,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:20:49,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:20:49,080 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:20:49,080 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:20:49,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:20:49,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:20:49,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:20:49,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:20:49,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:20:49,081 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:20:49,081 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_1e1e09da-e1b0-4e27-9395-d6386fed9203/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa5836aa0af18082c369b87af434906a3830fe9d29b8b61fdf47f6b10fed1171 [2023-11-28 20:20:49,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:20:49,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:20:49,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:20:49,406 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:20:49,406 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:20:49,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i [2023-11-28 20:20:52,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:20:52,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:20:52,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i [2023-11-28 20:20:52,464 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data/997770af3/4f0483d6edfe41a2b9a4f1e3507b080a/FLAG474a65674 [2023-11-28 20:20:52,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/data/997770af3/4f0483d6edfe41a2b9a4f1e3507b080a [2023-11-28 20:20:52,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:20:52,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:20:52,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:20:52,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:20:52,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:20:52,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:52" (1/1) ... [2023-11-28 20:20:52,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb952d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:52, skipping insertion in model container [2023-11-28 20:20:52,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:52" (1/1) ... [2023-11-28 20:20:52,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:20:53,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:20:53,224 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:20:53,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:20:53,413 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:53,413 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:53,414 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:53,414 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:20:53,420 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:20:53,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53 WrapperNode [2023-11-28 20:20:53,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:20:53,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:20:53,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:20:53,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:20:53,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,482 INFO L138 Inliner]: procedures = 503, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-28 20:20:53,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:20:53,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:20:53,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:20:53,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:20:53,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,512 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [1, 5]. 83 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 3 writes are split as follows [0, 3]. [2023-11-28 20:20:53,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:20:53,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:20:53,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:20:53,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:20:53,539 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (1/1) ... [2023-11-28 20:20:53,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:20:53,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:20:53,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:20:53,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:20:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-28 20:20:53,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-28 20:20:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:20:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:20:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 20:20:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:20:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:20:53,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:20:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 20:20:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 20:20:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:20:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 20:20:53,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 20:20:53,604 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-28 20:20:53,762 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:20:53,764 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:20:53,900 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:20:53,930 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:20:53,930 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:20:53,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:53 BoogieIcfgContainer [2023-11-28 20:20:53,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:20:53,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:20:53,933 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:20:53,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:20:53,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:20:52" (1/3) ... [2023-11-28 20:20:53,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f09525e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:53, skipping insertion in model container [2023-11-28 20:20:53,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:53" (2/3) ... [2023-11-28 20:20:53,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f09525e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:53, skipping insertion in model container [2023-11-28 20:20:53,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:53" (3/3) ... [2023-11-28 20:20:53,940 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_07_bad.i [2023-11-28 20:20:53,958 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:20:53,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-28 20:20:54,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:20:54,010 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;@6d2a1f98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:20:54,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-28 20:20:54,014 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) [2023-11-28 20:20:54,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:20:54,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:20:54,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:20:54,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-28 20:20:54,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:20:54,028 INFO L85 PathProgramCache]: Analyzing trace with hash -921141371, now seen corresponding path program 1 times [2023-11-28 20:20:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:20:54,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889579290] [2023-11-28 20:20:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:20:54,039 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 [2023-11-28 20:20:54,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:20:54,040 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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) [2023-11-28 20:20:54,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 [2023-11-28 20:20:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:20:54,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:20:54,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:20:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:20:54,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:20:54,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:20:54,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889579290] [2023-11-28 20:20:54,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889579290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:20:54,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:20:54,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:20:54,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305782919] [2023-11-28 20:20:54,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:20:54,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:20:54,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:20:54,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:20:54,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:20:54,247 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:20:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:20:54,290 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-11-28 20:20:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:20:54,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-28 20:20:54,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:20:54,299 INFO L225 Difference]: With dead ends: 29 [2023-11-28 20:20:54,299 INFO L226 Difference]: Without dead ends: 11 [2023-11-28 20:20:54,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:20:54,306 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:20:54,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:20:54,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-28 20:20:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-28 20:20:54,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:20:54,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-28 20:20:54,346 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 10 [2023-11-28 20:20:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:20:54,347 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-28 20:20:54,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:20:54,347 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-28 20:20:54,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:20:54,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:20:54,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:20:54,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 [2023-11-28 20:20:54,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 [2023-11-28 20:20:54,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-28 20:20:54,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:20:54,552 INFO L85 PathProgramCache]: Analyzing trace with hash -921143293, now seen corresponding path program 1 times [2023-11-28 20:20:54,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:20:54,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257794732] [2023-11-28 20:20:54,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:20:54,554 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 [2023-11-28 20:20:54,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:20:54,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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) [2023-11-28 20:20:54,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 (3)] Waiting until timeout for monitored process [2023-11-28 20:20:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:20:54,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:20:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:20:54,720 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-28 20:20:54,720 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:20:54,722 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-28 20:20:54,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-28 20:20:54,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 (3)] Ended with exit code 0 [2023-11-28 20:20:54,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/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 [2023-11-28 20:20:54,927 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-28 20:20:54,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:20:54,942 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-28 20:20:54,943 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-28 20:20:54,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-28 20:20:54,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-28 20:20:54,946 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-28 20:20:54,946 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-28 20:20:54,946 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-28 20:20:54,947 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem98 could not be translated [2023-11-28 20:20:54,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:20:54 BoogieIcfgContainer [2023-11-28 20:20:54,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:20:54,955 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:20:54,955 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:20:54,955 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:20:54,956 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:53" (3/4) ... [2023-11-28 20:20:54,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:20:54,958 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:20:54,959 INFO L158 Benchmark]: Toolchain (without parser) took 2475.68ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 46.7MB in the beginning and 53.3MB in the end (delta: -6.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-28 20:20:54,960 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:20:54,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 936.40ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 46.5MB in the beginning and 53.9MB in the end (delta: -7.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-11-28 20:20:54,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.82ms. Allocated memory is still 94.4MB. Free memory was 53.9MB in the beginning and 51.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:20:54,961 INFO L158 Benchmark]: Boogie Preprocessor took 54.27ms. Allocated memory is still 94.4MB. Free memory was 51.0MB in the beginning and 48.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:20:54,962 INFO L158 Benchmark]: RCFGBuilder took 393.13ms. Allocated memory is still 94.4MB. Free memory was 48.0MB in the beginning and 55.8MB in the end (delta: -7.8MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-28 20:20:54,962 INFO L158 Benchmark]: TraceAbstraction took 1021.32ms. Allocated memory is still 94.4MB. Free memory was 54.6MB in the beginning and 53.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2023-11-28 20:20:54,963 INFO L158 Benchmark]: Witness Printer took 3.42ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 53.3MB in the end (delta: 353.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:20:54,966 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 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 936.40ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 46.5MB in the beginning and 53.9MB in the end (delta: -7.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.82ms. Allocated memory is still 94.4MB. Free memory was 53.9MB in the beginning and 51.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.27ms. Allocated memory is still 94.4MB. Free memory was 51.0MB in the beginning and 48.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.13ms. Allocated memory is still 94.4MB. Free memory was 48.0MB in the beginning and 55.8MB in the end (delta: -7.8MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1021.32ms. Allocated memory is still 94.4MB. Free memory was 54.6MB in the beginning and 53.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 3.42ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 53.3MB in the end (delta: 353.3kB). 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 Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem98 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: 1560]: 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 1569. 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 staticFive = 5; [L1569] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1569] 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, staticFive=5] [L1570] CALL CWE191_Integer_Underflow__int_fscanf_predec_07_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1553] COND TRUE staticFive==5 [L1557] COND TRUE staticFive==5 [L1560] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1560] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - UnprovableResult [Line: 1560]: 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2023-11-28 20:20:54,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e1e09da-e1b0-4e27-9395-d6386fed9203/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample