./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1 --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 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 14:33:47,723 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 14:33:47,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-12-02 14:33:47,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 14:33:47,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 14:33:47,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 14:33:47,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 14:33:47,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 14:33:47,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 14:33:47,817 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 14:33:47,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 14:33:47,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 14:33:47,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 14:33:47,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 14:33:47,817 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 14:33:47,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 14:33:47,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 14:33:47,819 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:33:47,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:33:47,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:33:47,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 14:33:47,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 14:33:47,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1
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 -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed
[2024-12-02 14:33:48,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 14:33:48,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 14:33:48,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 14:33:48,093 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 14:33:48,093 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 14:33:48,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i
[2024-12-02 14:33:50,942 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/a457d8090/79a0783305034cab9d7c8253f5f50a82/FLAGbe4cf8c52
[2024-12-02 14:33:51,332 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 14:33:51,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i
[2024-12-02 14:33:51,355 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/a457d8090/79a0783305034cab9d7c8253f5f50a82/FLAGbe4cf8c52
[2024-12-02 14:33:51,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/a457d8090/79a0783305034cab9d7c8253f5f50a82
[2024-12-02 14:33:51,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 14:33:51,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 14:33:51,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 14:33:51,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 14:33:51,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 14:33:51,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:51" (1/1) ...
[2024-12-02 14:33:51,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479a07d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:51, skipping insertion in model container
[2024-12-02 14:33:51,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:51" (1/1) ...
[2024-12-02 14:33:51,621 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 14:33:52,383 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:33:52,393 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 14:33:52,481 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:33:52,581 INFO L204 MainTranslator]: Completed translation
[2024-12-02 14:33:52,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52 WrapperNode
[2024-12-02 14:33:52,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 14:33:52,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 14:33:52,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 14:33:52,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 14:33:52,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,622 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63
[2024-12-02 14:33:52,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 14:33:52,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 14:33:52,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 14:33:52,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 14:33:52,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,645 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-12-02 14:33:52,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,649 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 14:33:52,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 14:33:52,655 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 14:33:52,655 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 14:33:52,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (1/1) ...
[2024-12-02 14:33:52,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:33:52,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:33:52,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 14:33:52,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 14:33:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 14:33:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 14:33:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 14:33:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 14:33:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 14:33:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 14:33:52,860 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 14:33:52,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 14:33:52,978 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live.
[2024-12-02 14:33:52,978 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 14:33:52,989 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 14:33:52,989 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 14:33:52,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:52 BoogieIcfgContainer
[2024-12-02 14:33:52,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 14:33:52,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 14:33:52,992 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 14:33:52,996 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 14:33:52,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:33:51" (1/3) ...
[2024-12-02 14:33:52,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9826c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:52, skipping insertion in model container
[2024-12-02 14:33:52,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:52" (2/3) ...
[2024-12-02 14:33:52,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9826c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:52, skipping insertion in model container
[2024-12-02 14:33:52,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:52" (3/3) ...
[2024-12-02 14:33:52,999 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i
[2024-12-02 14:33:53,013 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 14:33:53,014 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-12-02 14:33:53,062 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 14:33:53,074 INFO L333 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, 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;@30d61b58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 14:33:53,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 14:33:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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)
[2024-12-02 14:33:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 14:33:53,084 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:33:53,084 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:33:53,085 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 14:33:53,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:33:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times
[2024-12-02 14:33:53,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:33:53,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390739476]
[2024-12-02 14:33:53,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:33:53,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:33:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 14:33:53,224 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 14:33:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 14:33:53,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 14:33:53,267 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 14:33:53,268 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-02 14:33:53,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-02 14:33:53,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 14:33:53,273 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-12-02 14:33:53,292 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 14:33:53,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:33:53 BoogieIcfgContainer
[2024-12-02 14:33:53,295 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 14:33:53,296 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 14:33:53,296 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 14:33:53,296 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 14:33:53,297 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:52" (3/4) ...
[2024-12-02 14:33:53,299 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 14:33:53,300 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 14:33:53,301 INFO L158 Benchmark]: Toolchain (without parser) took 1730.98ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 44.4MB in the end (delta: 44.7MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB.
[2024-12-02 14:33:53,301 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:33:53,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1010.51ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 78.5MB in the end (delta: 10.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB.
[2024-12-02 14:33:53,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.10ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:33:53,303 INFO L158 Benchmark]: Boogie Preprocessor took 31.11ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 73.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:33:53,303 INFO L158 Benchmark]: RCFGBuilder took 334.52ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 61.7MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 14:33:53,303 INFO L158 Benchmark]: TraceAbstraction took 303.18ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 44.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 14:33:53,304 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 117.4MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:33:53,306 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 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1010.51ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 78.5MB in the end (delta: 10.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 40.10ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 31.11ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 73.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 334.52ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 61.7MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 303.18ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 44.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 4.13ms. Allocated memory is still 117.4MB. Free memory is still 44.4MB. 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: 1577]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555.
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]
[L1569] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1569] RET 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]
[L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_51_bad()
[L1551] int data;
[L1552] data = 0
[L1554] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557] data = atoi(inputBuffer)
[L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_51b_badSink(data)
[L1577] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-12-02 14:33:53,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1 --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 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 14:33:55,538 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 14:33:55,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-12-02 14:33:55,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 14:33:55,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 14:33:55,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-12-02 14:33:55,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 14:33:55,662 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 14:33:55,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 14:33:55,663 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 14:33:55,663 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 14:33:55,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 14:33:55,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 14:33:55,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 14:33:55,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 14:33:55,664 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 14:33:55,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 14:33:55,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 14:33:55,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 14:33:55,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 14:33:55,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 14:33:55,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 14:33:55,665 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 14:33:55,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 14:33:55,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:33:55,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 14:33:55,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:33:55,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 14:33:55,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 14:33:55,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:33:55,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 14:33:55,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:33:55,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 14:33:55,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 14:33:55,668 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1
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 -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed
[2024-12-02 14:33:55,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 14:33:55,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 14:33:55,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 14:33:55,946 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 14:33:55,946 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 14:33:55,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i
[2024-12-02 14:33:59,049 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/6b93c8f3f/99bbf46d252a463b822232fea6d0e7e5/FLAG3fe842b87
[2024-12-02 14:33:59,371 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 14:33:59,372 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i
[2024-12-02 14:33:59,397 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/6b93c8f3f/99bbf46d252a463b822232fea6d0e7e5/FLAG3fe842b87
[2024-12-02 14:33:59,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/data/6b93c8f3f/99bbf46d252a463b822232fea6d0e7e5
[2024-12-02 14:33:59,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 14:33:59,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 14:33:59,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 14:33:59,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 14:33:59,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 14:33:59,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:59" (1/1) ...
[2024-12-02 14:33:59,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0f055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:59, skipping insertion in model container
[2024-12-02 14:33:59,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:59" (1/1) ...
[2024-12-02 14:33:59,473 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 14:34:00,234 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:34:00,247 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 14:34:00,355 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:34:00,476 INFO L204 MainTranslator]: Completed translation
[2024-12-02 14:34:00,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00 WrapperNode
[2024-12-02 14:34:00,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 14:34:00,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 14:34:00,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 14:34:00,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 14:34:00,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,526 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62
[2024-12-02 14:34:00,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 14:34:00,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 14:34:00,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 14:34:00,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 14:34:00,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,556 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-12-02 14:34:00,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,564 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 14:34:00,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 14:34:00,575 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 14:34:00,575 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 14:34:00,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (1/1) ...
[2024-12-02 14:34:00,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:34:00,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:34:00,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 14:34:00,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 14:34:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 14:34:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 14:34:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 14:34:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 14:34:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 14:34:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 14:34:00,786 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 14:34:00,787 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 14:34:00,915 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-12-02 14:34:00,915 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 14:34:00,925 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 14:34:00,926 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 14:34:00,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:34:00 BoogieIcfgContainer
[2024-12-02 14:34:00,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 14:34:00,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 14:34:00,929 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 14:34:00,934 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 14:34:00,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:33:59" (1/3) ...
[2024-12-02 14:34:00,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fde1e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:34:00, skipping insertion in model container
[2024-12-02 14:34:00,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:00" (2/3) ...
[2024-12-02 14:34:00,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fde1e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:34:00, skipping insertion in model container
[2024-12-02 14:34:00,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:34:00" (3/3) ...
[2024-12-02 14:34:00,937 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i
[2024-12-02 14:34:00,955 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 14:34:00,957 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-12-02 14:34:01,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 14:34:01,023 INFO L333 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, 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;@46665ef9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 14:34:01,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 14:34:01,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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)
[2024-12-02 14:34:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 14:34:01,032 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:34:01,032 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:34:01,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 14:34:01,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:34:01,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times
[2024-12-02 14:34:01,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 14:34:01,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675807705]
[2024-12-02 14:34:01,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:34:01,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:34:01,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:34:01,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:34:01,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 14:34:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 14:34:01,176 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 14:34:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 14:34:01,230 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-12-02 14:34:01,232 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 14:34:01,233 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-02 14:34:01,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-02 14:34:01,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 14:34:01,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:34:01,440 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-12-02 14:34:01,461 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 14:34:01,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:34:01 BoogieIcfgContainer
[2024-12-02 14:34:01,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 14:34:01,465 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 14:34:01,465 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 14:34:01,465 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 14:34:01,465 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:34:00" (3/4) ...
[2024-12-02 14:34:01,467 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 14:34:01,468 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 14:34:01,469 INFO L158 Benchmark]: Toolchain (without parser) took 2049.25ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 56.8MB in the end (delta: 9.4MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB.
[2024-12-02 14:34:01,469 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:34:01,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1055.13ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 61.5MB in the end (delta: 4.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB.
[2024-12-02 14:34:01,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.30ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 58.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:34:01,471 INFO L158 Benchmark]: Boogie Preprocessor took 46.69ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 56.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:34:01,471 INFO L158 Benchmark]: RCFGBuilder took 351.63ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 43.4MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 14:34:01,471 INFO L158 Benchmark]: TraceAbstraction took 535.52ms. Allocated memory is still 92.3MB. Free memory was 42.5MB in the beginning and 56.8MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:34:01,472 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:34:01,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1055.13ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 61.5MB in the end (delta: 4.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 49.30ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 58.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 46.69ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 56.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 351.63ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 43.4MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 535.52ms. Allocated memory is still 92.3MB. Free memory was 42.5MB in the beginning and 56.8MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 3.52ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 18.4kB). 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: 1577]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555.
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]
[L1569] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1569] RET 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]
[L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_51_bad()
[L1551] int data;
[L1552] data = 0
[L1554] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557] data = atoi(inputBuffer)
[L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_51b_badSink(data)
[L1577] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 23 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-12-02 14:34:01,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabcaf9-9ee6-419f-8f48-f30d188412ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample