./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 30e01a73
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_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-30e01a7
[2023-11-23 21:17:50,810 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 21:17:50,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf
[2023-11-23 21:17:50,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 21:17:50,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 21:17:50,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 21:17:50,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 21:17:50,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 21:17:50,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 21:17:50,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 21:17:50,932 INFO L153 SettingsManager]: * User list type=DISABLED
[2023-11-23 21:17:50,933 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-11-23 21:17:50,934 INFO L153 SettingsManager]: * Explicit value domain=true
[2023-11-23 21:17:50,935 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-11-23 21:17:50,936 INFO L153 SettingsManager]: * Octagon Domain=false
[2023-11-23 21:17:50,936 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2023-11-23 21:17:50,937 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2023-11-23 21:17:50,937 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2023-11-23 21:17:50,938 INFO L153 SettingsManager]: * Interval Domain=false
[2023-11-23 21:17:50,938 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-11-23 21:17:50,939 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2023-11-23 21:17:50,939 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC
[2023-11-23 21:17:50,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 21:17:50,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 21:17:50,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-23 21:17:50,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 21:17:50,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 21:17:50,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 21:17:50,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 21:17:50,944 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-23 21:17:50,945 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-23 21:17:50,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 21:17:50,946 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 21:17:50,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 21:17:50,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 21:17:50,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 21:17:50,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:17:50,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 21:17:50,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 21:17:50,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 21:17:50,948 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2023-11-23 21:17:50,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-23 21:17:50,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 21:17:50,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 21:17:50,950 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-11-23 21:17:50,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 21:17:50,950 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
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_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f
[2023-11-23 21:17:51,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 21:17:51,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 21:17:51,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 21:17:51,325 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 21:17:51,327 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 21:17:51,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i
[2023-11-23 21:17:54,775 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 21:17:55,188 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 21:17:55,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i
[2023-11-23 21:17:55,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data/957773cfc/0628c52e0e464ba49cf2070c88df5646/FLAGc9683b6d0
[2023-11-23 21:17:55,255 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data/957773cfc/0628c52e0e464ba49cf2070c88df5646
[2023-11-23 21:17:55,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 21:17:55,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 21:17:55,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 21:17:55,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 21:17:55,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 21:17:55,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:55" (1/1) ...
[2023-11-23 21:17:55,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c13ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:55, skipping insertion in model container
[2023-11-23 21:17:55,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:55" (1/1) ...
[2023-11-23 21:17:55,365 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 21:17:55,839 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:17:56,398 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:17:56,410 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 21:17:56,435 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:17:56,542 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:17:56,670 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:17:56,670 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:17:56,670 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:17:56,670 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:17:56,670 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:17:56,671 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:17:56,679 INFO L206 MainTranslator]: Completed translation
[2023-11-23 21:17:56,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56 WrapperNode
[2023-11-23 21:17:56,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 21:17:56,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 21:17:56,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 21:17:56,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 21:17:56,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,751 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55
[2023-11-23 21:17:56,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 21:17:56,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 21:17:56,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 21:17:56,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 21:17:56,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 21:17:56,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 21:17:56,786 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 21:17:56,786 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 21:17:56,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (1/1) ...
[2023-11-23 21:17:56,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:17:56,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:17:56,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-23 21:17:56,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-23 21:17:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-23 21:17:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-23 21:17:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-23 21:17:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-23 21:17:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-23 21:17:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 21:17:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 21:17:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 21:17:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-23 21:17:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-23 21:17:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-23 21:17:57,032 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 21:17:57,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 21:17:57,172 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 21:17:57,214 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 21:17:57,215 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-23 21:17:57,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:57 BoogieIcfgContainer
[2023-11-23 21:17:57,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 21:17:57,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 21:17:57,222 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 21:17:57,231 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 21:17:57,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:17:55" (1/3) ...
[2023-11-23 21:17:57,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673a31b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:57, skipping insertion in model container
[2023-11-23 21:17:57,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:56" (2/3) ...
[2023-11-23 21:17:57,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673a31b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:57, skipping insertion in model container
[2023-11-23 21:17:57,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:57" (3/3) ...
[2023-11-23 21:17:57,239 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i
[2023-11-23 21:17:57,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 21:17:57,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-23 21:17:57,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 21:17:57,339 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=FINITE_AUTOMATA, 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;@6bca66e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 21:17:57,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-23 21:17:57,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-23 21:17:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-23 21:17:57,350 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:17:57,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:17:57,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:17:57,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:17:57,360 INFO L85 PathProgramCache]: Analyzing trace with hash -719670172, now seen corresponding path program 1 times
[2023-11-23 21:17:57,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:17:57,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975066219]
[2023-11-23 21:17:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:17:57,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:17:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:17:57,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 21:17:57,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:17:57,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975066219]
[2023-11-23 21:17:57,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975066219] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:17:57,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 21:17:57,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-23 21:17:57,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305211679]
[2023-11-23 21:17:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:17:57,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-23 21:17:57,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:17:57,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-23 21:17:57,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:17:57,857 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2023-11-23 21:17:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:17:57,916 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions.
[2023-11-23 21:17:57,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-23 21:17:57,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9
[2023-11-23 21:17:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:17:57,927 INFO L225 Difference]: With dead ends: 18
[2023-11-23 21:17:57,927 INFO L226 Difference]: Without dead ends: 12
[2023-11-23 21:17:57,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:17:57,935 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-23 21:17:57,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-23 21:17:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2023-11-23 21:17:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2023-11-23 21:17:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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)
[2023-11-23 21:17:57,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions.
[2023-11-23 21:17:57,984 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9
[2023-11-23 21:17:57,986 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:17:57,987 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions.
[2023-11-23 21:17:57,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2023-11-23 21:17:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions.
[2023-11-23 21:17:57,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-11-23 21:17:57,990 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:17:57,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:17:57,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-23 21:17:57,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:17:57,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:17:57,994 INFO L85 PathProgramCache]: Analyzing trace with hash -834938795, now seen corresponding path program 1 times
[2023-11-23 21:17:57,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:17:57,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310109420]
[2023-11-23 21:17:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:17:57,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:17:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:17:58,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-23 21:17:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:17:58,105 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2023-11-23 21:17:58,106 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-23 21:17:58,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-23 21:17:58,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-23 21:17:58,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-23 21:17:58,120 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-23 21:17:58,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-23 21:17:58,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:17:58 BoogieIcfgContainer
[2023-11-23 21:17:58,149 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-23 21:17:58,150 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-23 21:17:58,150 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-23 21:17:58,151 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-23 21:17:58,151 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:57" (3/4) ...
[2023-11-23 21:17:58,153 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-23 21:17:58,154 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-23 21:17:58,155 INFO L158 Benchmark]: Toolchain (without parser) took 2887.82ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 98.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB.
[2023-11-23 21:17:58,156 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 100.7MB. Free memory was 50.6MB in the beginning and 50.5MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:17:58,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1406.06ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 84.3MB in the end (delta: 21.4MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB.
[2023-11-23 21:17:58,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.28ms. Allocated memory is still 153.1MB. Free memory was 84.3MB in the beginning and 81.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 21:17:58,158 INFO L158 Benchmark]: Boogie Preprocessor took 31.09ms. Allocated memory is still 153.1MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 21:17:58,159 INFO L158 Benchmark]: RCFGBuilder took 433.24ms. Allocated memory is still 153.1MB. Free memory was 80.1MB in the beginning and 65.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-23 21:17:58,159 INFO L158 Benchmark]: TraceAbstraction took 928.32ms. Allocated memory is still 153.1MB. Free memory was 64.9MB in the beginning and 98.0MB in the end (delta: -33.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:17:58,160 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 153.1MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:17:58,163 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.13ms. Allocated memory is still 100.7MB. Free memory was 50.6MB in the beginning and 50.5MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1406.06ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 84.3MB in the end (delta: 21.4MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 72.28ms. Allocated memory is still 153.1MB. Free memory was 84.3MB in the beginning and 81.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 31.09ms. Allocated memory is still 153.1MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 433.24ms. Allocated memory is still 153.1MB. Free memory was 80.1MB in the beginning and 65.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 928.32ms. Allocated memory is still 153.1MB. Free memory was 64.9MB in the beginning and 98.0MB in the end (delta: -33.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.52ms. Allocated memory is still 153.1MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB.
* 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: 1568]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1556.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1576] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}]
[L1414] COND TRUE line != ((void *)0)
[L1576] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741827, argc=1073741827, argv={1073741829:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_31_bad()
[L1550] int data;
[L1551] data = 0
[L1553] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1556] EXPR data = atoi(inputBuffer)
[L1553] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1552-L1562] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1564] int dataCopy = data;
[L1565] int data = dataCopy;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, dataCopy=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1566] COND TRUE data > 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, dataCopy=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1568] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, dataCopy=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1568]: 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 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, 0.3s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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
[2023-11-23 21:17:58,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-30e01a7
[2023-11-23 21:18:01,013 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 21:18:01,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf
[2023-11-23 21:18:01,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 21:18:01,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 21:18:01,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 21:18:01,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 21:18:01,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 21:18:01,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 21:18:01,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 21:18:01,209 INFO L153 SettingsManager]: * User list type=DISABLED
[2023-11-23 21:18:01,209 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-11-23 21:18:01,210 INFO L153 SettingsManager]: * Explicit value domain=true
[2023-11-23 21:18:01,212 INFO L153 SettingsManager]: * Octagon Domain=false
[2023-11-23 21:18:01,212 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2023-11-23 21:18:01,212 INFO L153 SettingsManager]: * Interval Domain=false
[2023-11-23 21:18:01,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 21:18:01,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 21:18:01,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 21:18:01,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 21:18:01,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 21:18:01,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 21:18:01,217 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-23 21:18:01,218 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-23 21:18:01,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-23 21:18:01,219 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-23 21:18:01,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-23 21:18:01,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 21:18:01,220 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 21:18:01,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 21:18:01,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-23 21:18:01,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 21:18:01,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 21:18:01,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:18:01,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 21:18:01,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 21:18:01,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 21:18:01,224 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS
[2023-11-23 21:18:01,224 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-23 21:18:01,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 21:18:01,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 21:18:01,226 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-11-23 21:18:01,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 21:18:01,226 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f
[2023-11-23 21:18:01,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 21:18:01,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 21:18:01,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 21:18:01,691 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 21:18:01,691 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 21:18:01,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i
[2023-11-23 21:18:04,737 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 21:18:05,217 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 21:18:05,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i
[2023-11-23 21:18:05,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data/3cf294e51/93a336355fba4f4fb08698648aee96e7/FLAGf71d4e54f
[2023-11-23 21:18:05,271 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/data/3cf294e51/93a336355fba4f4fb08698648aee96e7
[2023-11-23 21:18:05,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 21:18:05,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 21:18:05,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 21:18:05,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 21:18:05,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 21:18:05,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:05" (1/1) ...
[2023-11-23 21:18:05,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca4b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:05, skipping insertion in model container
[2023-11-23 21:18:05,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:05" (1/1) ...
[2023-11-23 21:18:05,384 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 21:18:05,882 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:18:06,444 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:18:06,468 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 21:18:06,503 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:18:06,626 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:18:06,761 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:18:06,761 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:18:06,762 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:18:06,762 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:18:06,762 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:18:06,762 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:18:06,769 INFO L206 MainTranslator]: Completed translation
[2023-11-23 21:18:06,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06 WrapperNode
[2023-11-23 21:18:06,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 21:18:06,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 21:18:06,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 21:18:06,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 21:18:06,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,844 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54
[2023-11-23 21:18:06,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 21:18:06,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 21:18:06,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 21:18:06,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 21:18:06,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 21:18:06,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 21:18:06,887 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 21:18:06,887 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 21:18:06,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (1/1) ...
[2023-11-23 21:18:06,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:18:06,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:18:06,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-23 21:18:06,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-23 21:18:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-23 21:18:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-23 21:18:07,024 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-23 21:18:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-23 21:18:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-23 21:18:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 21:18:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 21:18:07,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 21:18:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-23 21:18:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-23 21:18:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-23 21:18:07,187 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 21:18:07,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 21:18:07,415 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 21:18:07,467 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 21:18:07,467 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-23 21:18:07,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:07 BoogieIcfgContainer
[2023-11-23 21:18:07,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 21:18:07,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 21:18:07,470 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 21:18:07,481 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 21:18:07,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:05" (1/3) ...
[2023-11-23 21:18:07,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c1853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:07, skipping insertion in model container
[2023-11-23 21:18:07,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:06" (2/3) ...
[2023-11-23 21:18:07,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c1853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:07, skipping insertion in model container
[2023-11-23 21:18:07,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:07" (3/3) ...
[2023-11-23 21:18:07,486 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i
[2023-11-23 21:18:07,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 21:18:07,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-23 21:18:07,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 21:18:07,571 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=FINITE_AUTOMATA, 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;@7188adf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 21:18:07,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-23 21:18:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-23 21:18:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-23 21:18:07,586 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:18:07,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:18:07,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:18:07,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:18:07,594 INFO L85 PathProgramCache]: Analyzing trace with hash 77672594, now seen corresponding path program 1 times
[2023-11-23 21:18:07,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2023-11-23 21:18:07,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886317581]
[2023-11-23 21:18:07,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:18:07,613 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
[2023-11-23 21:18:07,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/mathsat
[2023-11-23 21:18:07,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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)
[2023-11-23 21:18:07,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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
[2023-11-23 21:18:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:18:07,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-23 21:18:07,814 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:18:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 21:18:07,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:18:07,868 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace
[2023-11-23 21:18:07,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886317581]
[2023-11-23 21:18:07,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886317581] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:18:07,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 21:18:07,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-23 21:18:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801584118]
[2023-11-23 21:18:07,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:18:07,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-23 21:18:07,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS
[2023-11-23 21:18:07,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-23 21:18:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:18:07,961 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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)
[2023-11-23 21:18:08,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:18:08,053 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions.
[2023-11-23 21:18:08,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-23 21:18:08,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) Word has length 11
[2023-11-23 21:18:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:18:08,063 INFO L225 Difference]: With dead ends: 20
[2023-11-23 21:18:08,063 INFO L226 Difference]: Without dead ends: 14
[2023-11-23 21:18:08,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:18:08,070 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-23 21:18:08,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 28 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-23 21:18:08,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2023-11-23 21:18:08,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2023-11-23 21:18:08,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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)
[2023-11-23 21:18:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions.
[2023-11-23 21:18:08,108 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11
[2023-11-23 21:18:08,109 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:18:08,110 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions.
[2023-11-23 21:18:08,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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)
[2023-11-23 21:18:08,110 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2023-11-23 21:18:08,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-23 21:18:08,112 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:18:08,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:18:08,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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
[2023-11-23 21:18:08,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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
[2023-11-23 21:18:08,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:18:08,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:18:08,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1887116825, now seen corresponding path program 1 times
[2023-11-23 21:18:08,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2023-11-23 21:18:08,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230038268]
[2023-11-23 21:18:08,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:18:08,319 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
[2023-11-23 21:18:08,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/mathsat
[2023-11-23 21:18:08,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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)
[2023-11-23 21:18:08,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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
[2023-11-23 21:18:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:18:08,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-23 21:18:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:18:08,595 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace
[2023-11-23 21:18:08,596 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-23 21:18:08,597 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-23 21:18:08,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-23 21:18:08,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0
[2023-11-23 21:18:08,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/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
[2023-11-23 21:18:08,804 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-23 21:18:08,808 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-23 21:18:08,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:18:08 BoogieIcfgContainer
[2023-11-23 21:18:08,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-23 21:18:08,848 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-23 21:18:08,848 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-23 21:18:08,848 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-23 21:18:08,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:07" (3/4) ...
[2023-11-23 21:18:08,851 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-23 21:18:08,852 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-23 21:18:08,855 INFO L158 Benchmark]: Toolchain (without parser) took 3574.87ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 57.0MB in the beginning and 60.7MB in the end (delta: -3.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB.
[2023-11-23 21:18:08,861 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:18:08,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1488.50ms. Allocated memory is still 88.1MB. Free memory was 56.8MB in the beginning and 40.3MB in the end (delta: 16.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB.
[2023-11-23 21:18:08,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.32ms. Allocated memory is still 88.1MB. Free memory was 40.3MB in the beginning and 37.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-23 21:18:08,863 INFO L158 Benchmark]: Boogie Preprocessor took 40.36ms. Allocated memory is still 88.1MB. Free memory was 37.1MB in the beginning and 35.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 21:18:08,863 INFO L158 Benchmark]: RCFGBuilder took 581.20ms. Allocated memory is still 88.1MB. Free memory was 35.1MB in the beginning and 44.7MB in the end (delta: -9.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB.
[2023-11-23 21:18:08,864 INFO L158 Benchmark]: TraceAbstraction took 1376.42ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.2MB in the beginning and 61.4MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:18:08,868 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 107.0MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:18:08,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1488.50ms. Allocated memory is still 88.1MB. Free memory was 56.8MB in the beginning and 40.3MB in the end (delta: 16.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 75.32ms. Allocated memory is still 88.1MB. Free memory was 40.3MB in the beginning and 37.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 40.36ms. Allocated memory is still 88.1MB. Free memory was 37.1MB in the beginning and 35.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 581.20ms. Allocated memory is still 88.1MB. Free memory was 35.1MB in the beginning and 44.7MB in the end (delta: -9.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 1376.42ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.2MB in the beginning and 61.4MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.32ms. Allocated memory is still 107.0MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB.
* 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: 1568]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1556.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1576] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}]
[L1414] COND TRUE line != ((void *)0)
[L1576] 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]
[L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_31_bad()
[L1550] int data;
[L1551] data = 0
[L1553] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1556] EXPR data = atoi(inputBuffer)
[L1553] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1552-L1562] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1564] int dataCopy = data;
[L1565] int data = dataCopy;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, dataCopy=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1566] COND TRUE data > 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, dataCopy=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1568] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, dataCopy=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1568]: 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 65 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
[2023-11-23 21:18:08,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6dd06a-45d1-424c-87bc-e71d154eb846/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample