./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_34_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
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_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/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_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/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_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/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 6e02c649398eb1994366ecdc79498a3e2492dbf7a6d39044eadbdae31d2ca152
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:41:13,600 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:41:13,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 07:41:13,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:41:13,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:41:13,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:41:13,708 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:41:13,709 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:41:13,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:41:13,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:41:13,711 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:41:13,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:41:13,713 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:41:13,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:41:13,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:41:13,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:41:13,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:41:13,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:41:13,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:41:13,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:41:13,718 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:41:13,718 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:41:13,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:41:13,720 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:41:13,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:41:13,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:41:13,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:41:13,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:41:13,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:41:13,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:41:13,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:41:13,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:41:13,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:41:13,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:41:13,726 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:41:13,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:41:13,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:41:13,728 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:41:13,728 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_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e02c649398eb1994366ecdc79498a3e2492dbf7a6d39044eadbdae31d2ca152
[2023-11-19 07:41:14,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:41:14,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:41:14,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:41:14,120 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:41:14,121 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:41:14,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_34_bad.i
[2023-11-19 07:41:17,270 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:41:17,705 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:41:17,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_34_bad.i
[2023-11-19 07:41:17,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/data/3de980428/44982bcce20f484186134d9dda05a6f0/FLAGceb8faea0
[2023-11-19 07:41:17,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/data/3de980428/44982bcce20f484186134d9dda05a6f0
[2023-11-19 07:41:17,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:41:17,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:41:17,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:41:17,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:41:17,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:41:17,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:17" (1/1) ...
[2023-11-19 07:41:17,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fe2636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:17, skipping insertion in model container
[2023-11-19 07:41:17,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:17" (1/1) ...
[2023-11-19 07:41:17,877 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:41:18,299 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:41:18,882 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:41:18,891 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:41:18,912 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:41:18,974 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:41:19,115 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:41:19,115 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:41:19,115 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:41:19,116 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:41:19,116 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:41:19,123 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:41:19,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19 WrapperNode
[2023-11-19 07:41:19,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:41:19,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:41:19,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:41:19,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:41:19,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,240 INFO L138 Inliner]: procedures = 499, calls = 65, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55
[2023-11-19 07:41:19,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:41:19,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:41:19,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:41:19,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:41:19,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:41:19,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:41:19,311 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:41:19,311 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:41:19,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ...
[2023-11-19 07:41:19,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:41:19,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:41:19,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:41:19,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:41:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 07:41:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 07:41:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:41:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:41:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:41:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:41:19,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:41:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:41:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 07:41:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:41:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:41:19,554 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:41:19,557 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:41:19,701 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:41:19,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:41:19,713 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:41:19,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:19 BoogieIcfgContainer
[2023-11-19 07:41:19,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:41:19,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:41:19,719 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:41:19,723 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:41:19,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:17" (1/3) ...
[2023-11-19 07:41:19,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529f1878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:19, skipping insertion in model container
[2023-11-19 07:41:19,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (2/3) ...
[2023-11-19 07:41:19,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529f1878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:19, skipping insertion in model container
[2023-11-19 07:41:19,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:19" (3/3) ...
[2023-11-19 07:41:19,726 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_34_bad.i
[2023-11-19 07:41:19,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:41:19,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 07:41:19,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:41:19,798 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;@7d940e6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:41:19,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 07:41:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-19 07:41:19,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-19 07:41:19,812 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:41:19,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:41:19,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 07:41:19,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:41:19,819 INFO L85 PathProgramCache]: Analyzing trace with hash 80251503, now seen corresponding path program 1 times
[2023-11-19 07:41:19,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:41:19,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636809420]
[2023-11-19 07:41:19,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:19,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:41:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:41:20,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:41:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:41:20,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:41:20,111 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:41:20,112 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 07:41:20,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 07:41:20,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:41:20,119 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 07:41:20,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:41:20,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:41:20 BoogieIcfgContainer
[2023-11-19 07:41:20,147 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:41:20,148 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:41:20,148 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:41:20,148 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:41:20,149 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:19" (3/4) ...
[2023-11-19 07:41:20,150 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-19 07:41:20,193 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:41:20,193 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:41:20,195 INFO L158 Benchmark]: Toolchain (without parser) took 2422.73ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 81.4MB in the beginning and 89.2MB in the end (delta: -7.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB.
[2023-11-19 07:41:20,195 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:41:20,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1348.45ms. Allocated memory is still 123.7MB. Free memory was 81.4MB in the beginning and 43.8MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
[2023-11-19 07:41:20,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.46ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 43.8MB in the beginning and 124.9MB in the end (delta: -81.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB.
[2023-11-19 07:41:20,197 INFO L158 Benchmark]: Boogie Preprocessor took 68.87ms. Allocated memory is still 155.2MB. Free memory was 124.9MB in the beginning and 124.0MB in the end (delta: 887.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:41:20,198 INFO L158 Benchmark]: RCFGBuilder took 405.69ms. Allocated memory is still 155.2MB. Free memory was 124.0MB in the beginning and 110.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:41:20,199 INFO L158 Benchmark]: TraceAbstraction took 428.36ms. Allocated memory is still 155.2MB. Free memory was 109.3MB in the beginning and 91.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 07:41:20,199 INFO L158 Benchmark]: Witness Printer took 45.19ms. Allocated memory is still 155.2MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:41:20,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1348.45ms. Allocated memory is still 123.7MB. Free memory was 81.4MB in the beginning and 43.8MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 115.46ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 43.8MB in the beginning and 124.9MB in the end (delta: -81.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 68.87ms. Allocated memory is still 155.2MB. Free memory was 124.9MB in the beginning and 124.0MB in the end (delta: 887.1kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 405.69ms. Allocated memory is still 155.2MB. Free memory was 124.0MB in the beginning and 110.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 428.36ms. Allocated memory is still 155.2MB. Free memory was 109.3MB in the beginning and 91.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Witness Printer took 45.19ms. Allocated memory is still 155.2MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). 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
- CounterExampleResult [Line: 1563]: integer overflow possible
integer overflow possible
We found a 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]
[L1572] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}]
[L1414] COND TRUE line != ((void *)0)
[L1572] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741831, argc=1073741831, argv={1073741828:1073741833}, argv={1073741828:1073741833}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1573] CALL CWE191_Integer_Underflow__int_fscanf_predec_34_bad()
[L1555] int data;
[L1556] CWE191_Integer_Underflow__int_fscanf_predec_34_unionType myUnion;
[L1557] data = 0
[L1559] EXPR \read(data)
[L1559] myUnion.unionFirst = data
[L1561] EXPR myUnion.unionSecond
[L1561] int data = myUnion.unionSecond;
[L1563] --data
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={6:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={5:0}]
- UnprovableResult [Line: 1563]: 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 9 NumberOfCodeBlocks, 9 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 proved your program to be incorrect!
[2023-11-19 07:41:20,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dfc5c68-8b65-4a54-8bd3-4164adc12feb/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)