./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
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_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu --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 be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:34:24,089 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:34:24,216 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 07:34:24,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:34:24,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:34:24,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:34:24,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:34:24,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:34:24,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:34:24,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:34:24,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:34:24,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:34:24,262 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:34:24,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:34:24,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:34:24,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:34:24,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:34:24,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:34:24,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:34:24,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:34:24,267 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:34:24,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:34:24,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:34:24,269 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:34:24,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:34:24,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:34:24,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:34:24,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:34:24,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:34:24,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:34:24,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:34:24,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:34:24,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:34:24,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:34:24,275 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:34:24,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:34:24,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:34:24,275 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:34:24,276 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_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd
[2023-11-19 07:34:24,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:34:24,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:34:24,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:34:24,575 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:34:24,576 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:34:24,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i
[2023-11-19 07:34:27,726 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:34:28,106 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:34:28,107 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i
[2023-11-19 07:34:28,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data/48f7a17d1/99d2b9cb60dc46a6bc26ff95e2edc613/FLAG26605bffa
[2023-11-19 07:34:28,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data/48f7a17d1/99d2b9cb60dc46a6bc26ff95e2edc613
[2023-11-19 07:34:28,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:34:28,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:34:28,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:34:28,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:34:28,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:34:28,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:28" (1/1) ...
[2023-11-19 07:34:28,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c111a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:28, skipping insertion in model container
[2023-11-19 07:34:28,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:28" (1/1) ...
[2023-11-19 07:34:28,284 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:34:28,677 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:34:29,285 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:34:29,297 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:34:29,320 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:34:29,442 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:34:29,607 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:29,626 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:29,626 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:29,626 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:29,627 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:29,627 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:29,650 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:34:29,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29 WrapperNode
[2023-11-19 07:34:29,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:34:29,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:34:29,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:34:29,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:34:29,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,718 INFO L138 Inliner]: procedures = 501, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62
[2023-11-19 07:34:29,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:34:29,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:34:29,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:34:29,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:34:29,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:34:29,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:34:29,754 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:34:29,754 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:34:29,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (1/1) ...
[2023-11-19 07:34:29,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:34:29,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:34:29,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:34:29,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:34:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 07:34:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 07:34:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 07:34:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:34:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-19 07:34:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:34:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:34:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:34:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:34:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:34:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 07:34:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:34:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:34:30,018 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:34:30,020 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:34:30,243 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:34:30,251 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:34:30,251 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:34:30,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:30 BoogieIcfgContainer
[2023-11-19 07:34:30,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:34:30,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:34:30,258 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:34:30,267 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:34:30,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:28" (1/3) ...
[2023-11-19 07:34:30,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c15746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:30, skipping insertion in model container
[2023-11-19 07:34:30,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:29" (2/3) ...
[2023-11-19 07:34:30,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c15746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:30, skipping insertion in model container
[2023-11-19 07:34:30,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:30" (3/3) ...
[2023-11-19 07:34:30,274 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i
[2023-11-19 07:34:30,296 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:34:30,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 07:34:30,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:34:30,370 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;@7a148e3c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:34:30,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 07:34:30,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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)
[2023-11-19 07:34:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 07:34:30,381 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:34:30,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:34:30,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 07:34:30,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:34:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times
[2023-11-19 07:34:30,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:34:30,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009797918]
[2023-11-19 07:34:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:34:30,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:34:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:34:30,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:34:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:34:30,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:34:30,759 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:34:30,761 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 07:34:30,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 07:34:30,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:34:30,771 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 07:34:30,779 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:34:30,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:30 BoogieIcfgContainer
[2023-11-19 07:34:30,813 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:34:30,814 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:34:30,814 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:34:30,814 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:34:30,815 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:30" (3/4) ...
[2023-11-19 07:34:30,818 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 07:34:30,819 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:34:30,820 INFO L158 Benchmark]: Toolchain (without parser) took 2638.95ms. Allocated memory is still 178.3MB. Free memory was 128.8MB in the beginning and 91.3MB in the end (delta: 37.5MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB.
[2023-11-19 07:34:30,821 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:34:30,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1467.79ms. Allocated memory is still 178.3MB. Free memory was 128.3MB in the beginning and 130.3MB in the end (delta: -2.0MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB.
[2023-11-19 07:34:30,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.63ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 127.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:34:30,824 INFO L158 Benchmark]: Boogie Preprocessor took 32.78ms. Allocated memory is still 178.3MB. Free memory was 127.0MB in the beginning and 125.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:34:30,824 INFO L158 Benchmark]: RCFGBuilder took 501.58ms. Allocated memory is still 178.3MB. Free memory was 125.7MB in the beginning and 111.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:34:30,825 INFO L158 Benchmark]: TraceAbstraction took 555.57ms. Allocated memory is still 178.3MB. Free memory was 111.1MB in the beginning and 92.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 07:34:30,826 INFO L158 Benchmark]: Witness Printer took 5.68ms. Allocated memory is still 178.3MB. Free memory was 92.2MB in the beginning and 91.3MB in the end (delta: 888.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:34:30,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1467.79ms. Allocated memory is still 178.3MB. Free memory was 128.3MB in the beginning and 130.3MB in the end (delta: -2.0MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 67.63ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 127.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 32.78ms. Allocated memory is still 178.3MB. Free memory was 127.0MB in the beginning and 125.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 501.58ms. Allocated memory is still 178.3MB. Free memory was 125.7MB in the beginning and 111.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 555.57ms. Allocated memory is still 178.3MB. Free memory was 111.1MB in the beginning and 92.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Witness Printer took 5.68ms. Allocated memory is still 178.3MB. Free memory was 92.2MB in the beginning and 91.3MB in the end (delta: 888.4kB). Peak memory consumption was 2.1MB. 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: 1581]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1558.
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);
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1571] 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)
[L1571] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741833, argc=1073741833, argv={1073741829:1073741828}, argv={1073741829:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_66_bad()
[L1551] int data;
[L1552] int dataArray[5];
[L1553] data = 0
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] EXPR data = atoi(inputBuffer)
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1554-L1564] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1565] dataArray[2] = data
[L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_66b_badSink(dataArray)
[L1578] EXPR dataArray[2]
[L1578] int data = dataArray[2];
[L1579] COND TRUE data < 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, dataArray={7:0}, dataArray={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1581] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, dataArray={7:0}, dataArray={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1581]: 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, 24 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=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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
[2023-11-19 07:34:30,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu --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 be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:34:33,693 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:34:33,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2023-11-19 07:34:33,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:34:33,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:34:33,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-11-19 07:34:33,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:34:33,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:34:33,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:34:33,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:34:33,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:34:33,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:34:33,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:34:33,912 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:34:33,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:34:33,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:34:33,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:34:33,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:34:33,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:34:33,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:34:33,917 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:34:33,918 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:34:33,919 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:34:33,919 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:34:33,920 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:34:33,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:34:33,920 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:34:33,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:34:33,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:34:33,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:34:33,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:34:33,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:34:33,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:34:33,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:34:33,925 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:34:33,925 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:34:33,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:34:33,926 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:34:33,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:34:33,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:34:33,927 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:34:33,928 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:34:33,928 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_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd
[2023-11-19 07:34:34,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:34:34,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:34:34,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:34:34,392 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:34:34,393 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:34:34,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i
[2023-11-19 07:34:37,621 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:34:38,117 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:34:38,118 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i
[2023-11-19 07:34:38,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data/4c4af3817/0f4984dd18274800b65c091f2ec1c0c3/FLAGe9f0cec65
[2023-11-19 07:34:38,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/data/4c4af3817/0f4984dd18274800b65c091f2ec1c0c3
[2023-11-19 07:34:38,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:34:38,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:34:38,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:34:38,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:34:38,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:34:38,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:38" (1/1) ...
[2023-11-19 07:34:38,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2407a9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:38, skipping insertion in model container
[2023-11-19 07:34:38,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:38" (1/1) ...
[2023-11-19 07:34:38,287 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:34:38,764 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:34:39,397 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:34:39,419 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:34:39,441 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:34:39,526 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:34:39,711 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:39,712 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:39,712 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:39,712 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:39,712 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:39,712 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:34:39,721 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:34:39,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39 WrapperNode
[2023-11-19 07:34:39,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:34:39,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:34:39,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:34:39,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:34:39,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,794 INFO L138 Inliner]: procedures = 506, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61
[2023-11-19 07:34:39,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:34:39,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:34:39,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:34:39,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:34:39,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:34:39,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:34:39,843 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:34:39,843 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:34:39,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (1/1) ...
[2023-11-19 07:34:39,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:34:39,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:34:39,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:34:39,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:34:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 07:34:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 07:34:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 07:34:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:34:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:34:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:34:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:34:39,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:34:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-19 07:34:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:34:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-19 07:34:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 07:34:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-19 07:34:40,128 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:34:40,131 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:34:40,375 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:34:40,383 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:34:40,383 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:34:40,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:40 BoogieIcfgContainer
[2023-11-19 07:34:40,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:34:40,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:34:40,390 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:34:40,393 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:34:40,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:38" (1/3) ...
[2023-11-19 07:34:40,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ac5f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:40, skipping insertion in model container
[2023-11-19 07:34:40,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:39" (2/3) ...
[2023-11-19 07:34:40,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ac5f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:40, skipping insertion in model container
[2023-11-19 07:34:40,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:40" (3/3) ...
[2023-11-19 07:34:40,397 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i
[2023-11-19 07:34:40,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:34:40,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 07:34:40,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:34:40,506 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;@4e598979, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:34:40,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 07:34:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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)
[2023-11-19 07:34:40,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 07:34:40,521 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:34:40,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:34:40,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 07:34:40,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:34:40,531 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times
[2023-11-19 07:34:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:34:40,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227569028]
[2023-11-19 07:34:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:34:40,551 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
[2023-11-19 07:34:40,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:34:40,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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)
[2023-11-19 07:34:40,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 07:34:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:34:40,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:34:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:34:40,954 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2023-11-19 07:34:40,958 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:34:40,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 07:34:40,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 07:34:40,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 07:34:41,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 07:34:41,175 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 07:34:41,179 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:34:41,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:41 BoogieIcfgContainer
[2023-11-19 07:34:41,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:34:41,236 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:34:41,236 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:34:41,236 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:34:41,237 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:40" (3/4) ...
[2023-11-19 07:34:41,239 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 07:34:41,241 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:34:41,242 INFO L158 Benchmark]: Toolchain (without parser) took 3057.06ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 50.5MB in the end (delta: 17.3MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB.
[2023-11-19 07:34:41,243 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 60.8MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:34:41,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1533.99ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 60.1MB in the end (delta: 7.7MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB.
[2023-11-19 07:34:41,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.69ms. Allocated memory is still 96.5MB. Free memory was 60.1MB in the beginning and 57.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 07:34:41,251 INFO L158 Benchmark]: Boogie Preprocessor took 46.44ms. Allocated memory is still 96.5MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:34:41,252 INFO L158 Benchmark]: RCFGBuilder took 544.88ms. Allocated memory is still 96.5MB. Free memory was 54.9MB in the beginning and 40.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:34:41,254 INFO L158 Benchmark]: TraceAbstraction took 842.86ms. Allocated memory is still 96.5MB. Free memory was 39.3MB in the beginning and 50.5MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:34:41,254 INFO L158 Benchmark]: Witness Printer took 5.54ms. Allocated memory is still 96.5MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:34:41,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.38ms. Allocated memory is still 60.8MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1533.99ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 60.1MB in the end (delta: 7.7MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 71.69ms. Allocated memory is still 96.5MB. Free memory was 60.1MB in the beginning and 57.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 46.44ms. Allocated memory is still 96.5MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 544.88ms. Allocated memory is still 96.5MB. Free memory was 54.9MB in the beginning and 40.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 842.86ms. Allocated memory is still 96.5MB. Free memory was 39.3MB in the beginning and 50.5MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 5.54ms. Allocated memory is still 96.5MB. Free memory is still 50.5MB. 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: 1581]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1558.
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);
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1571] 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)
[L1571] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_66_bad()
[L1551] int data;
[L1552] int dataArray[5];
[L1553] data = 0
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] EXPR data = atoi(inputBuffer)
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1554-L1564] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1565] dataArray[2] = data
[L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_66b_badSink(dataArray)
[L1578] EXPR dataArray[2]
[L1578] int data = dataArray[2];
[L1579] COND TRUE data < 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={7:0}, dataArray={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1581] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={7:0}, dataArray={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1581]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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
[2023-11-19 07:34:41,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a12937-52a4-4b04-b825-0abbf6dc8f83/bin/uautomizer-verify-uCwYo4JHxu/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