./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/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_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/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_92838571-a838-4a9d-8278-d906b56a43ff/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 3373964143bc82bf5b7cdfe4a0a14ee76bcfa8915d074a65f7177afe9a4eeb19 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:52:47,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:52:47,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 01:52:47,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:52:47,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:52:47,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:52:47,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:52:47,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:52:47,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:52:47,587 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:52:47,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:52:47,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:52:47,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:52:47,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:52:47,590 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:52:47,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:52:47,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:52:47,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:52:47,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:52:47,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:52:47,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:52:47,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:52:47,594 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:52:47,594 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:52:47,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:52:47,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:52:47,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:52:47,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:52:47,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:52:47,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:52:47,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:52:47,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:52:47,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:52:47,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:52:47,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:52:47,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:52:47,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:52:47,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:52:47,598 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:52:47,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:52:47,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:52:47,599 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_92838571-a838-4a9d-8278-d906b56a43ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3373964143bc82bf5b7cdfe4a0a14ee76bcfa8915d074a65f7177afe9a4eeb19 [2023-11-29 01:52:47,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:52:47,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:52:47,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:52:47,862 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:52:47,862 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:52:47,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i [2023-11-29 01:52:50,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:52:50,854 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:52:50,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i [2023-11-29 01:52:50,880 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data/389841c7b/707a9ad9740341c5abeab4795e44ae04/FLAG47210ae49 [2023-11-29 01:52:50,895 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data/389841c7b/707a9ad9740341c5abeab4795e44ae04 [2023-11-29 01:52:50,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:52:50,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:52:50,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:52:50,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:52:50,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:52:50,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:52:50" (1/1) ... [2023-11-29 01:52:50,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bac9adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:50, skipping insertion in model container [2023-11-29 01:52:50,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:52:50" (1/1) ... [2023-11-29 01:52:50,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:52:51,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:52:51,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:52:51,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:52:51,952 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:51,952 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:51,952 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:51,952 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:51,960 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:52:51,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51 WrapperNode [2023-11-29 01:52:51,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:52:51,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:52:51,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:52:51,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:52:51,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:51,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,023 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 53 [2023-11-29 01:52:52,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:52:52,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:52:52,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:52:52,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:52:52,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,050 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 01:52:52,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:52:52,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:52:52,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:52:52,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:52:52,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (1/1) ... [2023-11-29 01:52:52,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:52:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:52:52,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:52:52,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:52:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 01:52:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 01:52:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:52:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:52:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:52:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:52:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:52:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:52:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:52:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 01:52:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:52:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:52:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:52:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:52:52,284 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:52:52,286 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:52:52,391 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:52:52,428 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:52:52,428 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 01:52:52,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:52:52 BoogieIcfgContainer [2023-11-29 01:52:52,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:52:52,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:52:52,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:52:52,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:52:52,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:52:50" (1/3) ... [2023-11-29 01:52:52,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782f2d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:52:52, skipping insertion in model container [2023-11-29 01:52:52,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:51" (2/3) ... [2023-11-29 01:52:52,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782f2d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:52:52, skipping insertion in model container [2023-11-29 01:52:52,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:52:52" (3/3) ... [2023-11-29 01:52:52,437 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i [2023-11-29 01:52:52,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:52:52,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 01:52:52,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:52:52,508 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;@ada55b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:52:52,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 01:52:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:52:52,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 01:52:52,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:52:52,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:52:52,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 01:52:52,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:52:52,526 INFO L85 PathProgramCache]: Analyzing trace with hash -733349546, now seen corresponding path program 1 times [2023-11-29 01:52:52,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:52:52,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322746856] [2023-11-29 01:52:52,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:52:52,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:52:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:52:52,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:52:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:52:52,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:52:52,733 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:52:52,734 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 01:52:52,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 01:52:52,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:52:52,739 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 01:52:52,742 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:52:52,755 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-29 01:52:52,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:52:52 BoogieIcfgContainer [2023-11-29 01:52:52,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:52:52,764 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:52:52,764 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:52:52,764 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:52:52,765 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:52:52" (3/4) ... [2023-11-29 01:52:52,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:52:52,767 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:52:52,768 INFO L158 Benchmark]: Toolchain (without parser) took 1869.63ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 87.9MB in the beginning and 98.5MB in the end (delta: -10.6MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2023-11-29 01:52:52,769 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:52:52,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1061.27ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 87.9MB in the beginning and 137.3MB in the end (delta: -49.4MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2023-11-29 01:52:52,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.86ms. Allocated memory is still 197.1MB. Free memory was 137.3MB in the beginning and 134.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:52:52,771 INFO L158 Benchmark]: Boogie Preprocessor took 38.06ms. Allocated memory is still 197.1MB. Free memory was 134.1MB in the beginning and 132.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:52:52,771 INFO L158 Benchmark]: RCFGBuilder took 365.78ms. Allocated memory is still 197.1MB. Free memory was 132.1MB in the beginning and 117.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 01:52:52,772 INFO L158 Benchmark]: TraceAbstraction took 331.94ms. Allocated memory is still 197.1MB. Free memory was 116.3MB in the beginning and 98.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:52:52,772 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 197.1MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:52:52,775 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1061.27ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 87.9MB in the beginning and 137.3MB in the end (delta: -49.4MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.86ms. Allocated memory is still 197.1MB. Free memory was 137.3MB in the beginning and 134.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.06ms. Allocated memory is still 197.1MB. Free memory was 134.1MB in the beginning and 132.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 365.78ms. Allocated memory is still 197.1MB. Free memory was 132.1MB in the beginning and 117.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 331.94ms. Allocated memory is still 197.1MB. Free memory was 116.3MB in the beginning and 98.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 197.1MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741826, argc=1073741826, argv={1073741829:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_fscanf_sub_53_bad() [L1551] int data; [L1552] data = 0 [L1554] EXPR \read(data) [L1554] CALL CWE191_Integer_Underflow__int_fscanf_sub_53b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_fscanf_sub_53c_badSink(data) [L1572] CALL CWE191_Integer_Underflow__int_fscanf_sub_53d_badSink(data) [L1577] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 01:52:52,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/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_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/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_92838571-a838-4a9d-8278-d906b56a43ff/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 3373964143bc82bf5b7cdfe4a0a14ee76bcfa8915d074a65f7177afe9a4eeb19 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:52:54,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:52:54,735 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 01:52:54,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:52:54,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:52:54,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 01:52:54,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:52:54,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:52:54,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:52:54,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:52:54,771 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:52:54,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:52:54,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:52:54,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:52:54,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:52:54,774 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:52:54,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:52:54,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:52:54,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:52:54,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:52:54,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:52:54,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:52:54,778 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:52:54,778 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:52:54,779 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:52:54,779 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:52:54,780 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:52:54,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:52:54,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:52:54,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:52:54,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:52:54,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:52:54,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:52:54,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:52:54,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:52:54,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:52:54,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:52:54,783 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:52:54,783 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:52:54,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:52:54,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:52:54,784 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:52:54,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:52:54,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:52:54,785 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:52:54,785 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_92838571-a838-4a9d-8278-d906b56a43ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3373964143bc82bf5b7cdfe4a0a14ee76bcfa8915d074a65f7177afe9a4eeb19 [2023-11-29 01:52:55,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:52:55,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:52:55,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:52:55,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:52:55,106 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:52:55,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i [2023-11-29 01:52:57,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:52:58,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:52:58,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i [2023-11-29 01:52:58,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data/b4f4a63a5/6920f45e33664f28878904cf9e0a5ce4/FLAG85a3e9afe [2023-11-29 01:52:58,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/data/b4f4a63a5/6920f45e33664f28878904cf9e0a5ce4 [2023-11-29 01:52:58,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:52:58,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:52:58,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:52:58,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:52:58,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:52:58,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:52:58" (1/1) ... [2023-11-29 01:52:58,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9f7f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:58, skipping insertion in model container [2023-11-29 01:52:58,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:52:58" (1/1) ... [2023-11-29 01:52:58,367 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:52:59,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:52:59,138 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:52:59,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:52:59,370 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:59,371 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:59,371 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:59,371 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:52:59,376 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:52:59,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59 WrapperNode [2023-11-29 01:52:59,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:52:59,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:52:59,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:52:59,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:52:59,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,435 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 52 [2023-11-29 01:52:59,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:52:59,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:52:59,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:52:59,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:52:59,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,464 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 01:52:59,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:52:59,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:52:59,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:52:59,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:52:59,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (1/1) ... [2023-11-29 01:52:59,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:52:59,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:52:59,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:52:59,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:52:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 01:52:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 01:52:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:52:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:52:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 01:52:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:52:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:52:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:52:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 01:52:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 01:52:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:52:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 01:52:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 01:52:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 01:52:59,737 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:52:59,739 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:52:59,874 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:52:59,913 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:52:59,913 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 01:52:59,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:52:59 BoogieIcfgContainer [2023-11-29 01:52:59,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:52:59,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:52:59,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:52:59,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:52:59,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:52:58" (1/3) ... [2023-11-29 01:52:59,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e20dbd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:52:59, skipping insertion in model container [2023-11-29 01:52:59,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:52:59" (2/3) ... [2023-11-29 01:52:59,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e20dbd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:52:59, skipping insertion in model container [2023-11-29 01:52:59,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:52:59" (3/3) ... [2023-11-29 01:52:59,921 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_53_bad.i [2023-11-29 01:52:59,935 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:52:59,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 01:52:59,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:52:59,978 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;@723ba3c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:52:59,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 01:52:59,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:52:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 01:52:59,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:52:59,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:52:59,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 01:52:59,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:52:59,996 INFO L85 PathProgramCache]: Analyzing trace with hash -733349546, now seen corresponding path program 1 times [2023-11-29 01:53:00,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:53:00,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637338190] [2023-11-29 01:53:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:53:00,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:53:00,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:53:00,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:53:00,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 01:53:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:53:00,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:53:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:53:00,200 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 01:53:00,201 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:53:00,202 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 01:53:00,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 01:53:00,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:53:00,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:53:00,409 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 01:53:00,412 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:53:00,431 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-29 01:53:00,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:53:00 BoogieIcfgContainer [2023-11-29 01:53:00,438 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:53:00,439 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:53:00,439 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:53:00,439 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:53:00,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:52:59" (3/4) ... [2023-11-29 01:53:00,441 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:53:00,442 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:53:00,443 INFO L158 Benchmark]: Toolchain (without parser) took 2141.95ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 32.1MB in the beginning and 57.7MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:53:00,444 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:53:00,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1075.07ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 31.9MB in the beginning and 46.5MB in the end (delta: -14.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-29 01:53:00,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.43ms. Allocated memory is still 88.1MB. Free memory was 46.5MB in the beginning and 43.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:53:00,445 INFO L158 Benchmark]: Boogie Preprocessor took 52.14ms. Allocated memory is still 88.1MB. Free memory was 43.5MB in the beginning and 40.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:53:00,446 INFO L158 Benchmark]: RCFGBuilder took 424.72ms. Allocated memory is still 88.1MB. Free memory was 40.7MB in the beginning and 49.9MB in the end (delta: -9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 01:53:00,447 INFO L158 Benchmark]: TraceAbstraction took 522.67ms. Allocated memory is still 88.1MB. Free memory was 49.2MB in the beginning and 58.2MB in the end (delta: -8.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-11-29 01:53:00,447 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 57.7MB in the end (delta: 489.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:53:00,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1075.07ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 31.9MB in the beginning and 46.5MB in the end (delta: -14.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.43ms. Allocated memory is still 88.1MB. Free memory was 46.5MB in the beginning and 43.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.14ms. Allocated memory is still 88.1MB. Free memory was 43.5MB in the beginning and 40.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.72ms. Allocated memory is still 88.1MB. Free memory was 40.7MB in the beginning and 49.9MB in the end (delta: -9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 522.67ms. Allocated memory is still 88.1MB. Free memory was 49.2MB in the beginning and 58.2MB in the end (delta: -8.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 57.7MB in the end (delta: 489.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_fscanf_sub_53_bad() [L1551] int data; [L1552] data = 0 [L1554] EXPR \read(data) [L1554] CALL CWE191_Integer_Underflow__int_fscanf_sub_53b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_fscanf_sub_53c_badSink(data) [L1572] CALL CWE191_Integer_Underflow__int_fscanf_sub_53d_badSink(data) [L1577] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 01:53:00,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92838571-a838-4a9d-8278-d906b56a43ff/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