./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 30e01a73
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-30e01a7
[2023-11-23 21:22:06,278 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 21:22:06,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf
[2023-11-23 21:22:06,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 21:22:06,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 21:22:06,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 21:22:06,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 21:22:06,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 21:22:06,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 21:22:06,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 21:22:06,458 INFO L153 SettingsManager]: * User list type=DISABLED
[2023-11-23 21:22:06,458 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-11-23 21:22:06,459 INFO L153 SettingsManager]: * Explicit value domain=true
[2023-11-23 21:22:06,461 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-11-23 21:22:06,461 INFO L153 SettingsManager]: * Octagon Domain=false
[2023-11-23 21:22:06,462 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2023-11-23 21:22:06,462 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2023-11-23 21:22:06,463 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2023-11-23 21:22:06,463 INFO L153 SettingsManager]: * Interval Domain=false
[2023-11-23 21:22:06,464 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-11-23 21:22:06,464 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2023-11-23 21:22:06,465 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC
[2023-11-23 21:22:06,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 21:22:06,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 21:22:06,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-23 21:22:06,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 21:22:06,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 21:22:06,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 21:22:06,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 21:22:06,469 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-23 21:22:06,485 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-23 21:22:06,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 21:22:06,486 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 21:22:06,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 21:22:06,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 21:22:06,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 21:22:06,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:22:06,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 21:22:06,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 21:22:06,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 21:22:06,488 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2023-11-23 21:22:06,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-23 21:22:06,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 21:22:06,489 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 21:22:06,490 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-11-23 21:22:06,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 21:22:06,490 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb
[2023-11-23 21:22:06,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 21:22:06,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 21:22:06,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 21:22:06,823 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 21:22:06,825 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 21:22:06,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i
[2023-11-23 21:22:09,903 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 21:22:10,493 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 21:22:10,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i
[2023-11-23 21:22:10,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data/5615c792e/5ff5cfa1645747bea24ed91c845dfbbc/FLAGba7536956
[2023-11-23 21:22:10,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data/5615c792e/5ff5cfa1645747bea24ed91c845dfbbc
[2023-11-23 21:22:10,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 21:22:10,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 21:22:10,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 21:22:10,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 21:22:10,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 21:22:10,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:10" (1/1) ...
[2023-11-23 21:22:10,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2338b7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:10, skipping insertion in model container
[2023-11-23 21:22:10,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:10" (1/1) ...
[2023-11-23 21:22:10,698 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 21:22:11,251 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:22:11,864 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:22:11,880 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 21:22:11,918 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:22:12,069 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:22:12,298 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:12,298 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:12,299 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:12,299 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:12,299 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:12,299 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:12,348 INFO L206 MainTranslator]: Completed translation
[2023-11-23 21:22:12,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12 WrapperNode
[2023-11-23 21:22:12,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 21:22:12,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 21:22:12,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 21:22:12,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 21:22:12,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,441 INFO L138 Inliner]: procedures = 502, calls = 66, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 56
[2023-11-23 21:22:12,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 21:22:12,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 21:22:12,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 21:22:12,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 21:22:12,459 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 21:22:12,527 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 21:22:12,528 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 21:22:12,528 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 21:22:12,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (1/1) ...
[2023-11-23 21:22:12,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:22:12,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:22:12,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-23 21:22:12,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-23 21:22:12,628 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-23 21:22:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-23 21:22:12,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-23 21:22:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-23 21:22:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-23 21:22:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 21:22:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 21:22:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 21:22:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-23 21:22:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-23 21:22:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-23 21:22:12,867 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 21:22:12,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 21:22:13,010 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 21:22:13,060 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 21:22:13,060 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-23 21:22:13,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:13 BoogieIcfgContainer
[2023-11-23 21:22:13,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 21:22:13,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 21:22:13,066 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 21:22:13,070 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 21:22:13,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:10" (1/3) ...
[2023-11-23 21:22:13,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4484b986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:13, skipping insertion in model container
[2023-11-23 21:22:13,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:12" (2/3) ...
[2023-11-23 21:22:13,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4484b986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:13, skipping insertion in model container
[2023-11-23 21:22:13,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:13" (3/3) ...
[2023-11-23 21:22:13,074 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i
[2023-11-23 21:22:13,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 21:22:13,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-23 21:22:13,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 21:22:13,165 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2191a26b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 21:22:13,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-23 21:22:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-23 21:22:13,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-23 21:22:13,180 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:22:13,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:22:13,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:22:13,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:22:13,190 INFO L85 PathProgramCache]: Analyzing trace with hash 63356454, now seen corresponding path program 1 times
[2023-11-23 21:22:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:22:13,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553497966]
[2023-11-23 21:22:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:22:13,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:22:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:22:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 21:22:13,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:22:13,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553497966]
[2023-11-23 21:22:13,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553497966] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:22:13,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 21:22:13,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-23 21:22:13,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889702878]
[2023-11-23 21:22:13,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:22:13,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-23 21:22:13,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:22:13,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-23 21:22:13,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:22:13,617 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-23 21:22:13,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:22:13,668 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions.
[2023-11-23 21:22:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-23 21:22:13,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9
[2023-11-23 21:22:13,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:22:13,678 INFO L225 Difference]: With dead ends: 18
[2023-11-23 21:22:13,678 INFO L226 Difference]: Without dead ends: 12
[2023-11-23 21:22:13,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:22:13,686 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-23 21:22:13,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-23 21:22:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2023-11-23 21:22:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2023-11-23 21:22:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-23 21:22:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions.
[2023-11-23 21:22:13,727 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9
[2023-11-23 21:22:13,729 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:22:13,729 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions.
[2023-11-23 21:22:13,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-23 21:22:13,730 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions.
[2023-11-23 21:22:13,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-11-23 21:22:13,731 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:22:13,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:22:13,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-23 21:22:13,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:22:13,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:22:13,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1964050131, now seen corresponding path program 1 times
[2023-11-23 21:22:13,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:22:13,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027366704]
[2023-11-23 21:22:13,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:22:13,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:22:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:22:13,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-23 21:22:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:22:13,838 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2023-11-23 21:22:13,839 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-23 21:22:13,841 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-23 21:22:13,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-23 21:22:13,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-23 21:22:13,847 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-23 21:22:13,851 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-23 21:22:13,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:22:13 BoogieIcfgContainer
[2023-11-23 21:22:13,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-23 21:22:13,878 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-23 21:22:13,879 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-23 21:22:13,879 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-23 21:22:13,879 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:13" (3/4) ...
[2023-11-23 21:22:13,882 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-23 21:22:13,883 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-23 21:22:13,884 INFO L158 Benchmark]: Toolchain (without parser) took 3310.75ms. Allocated memory is still 161.5MB. Free memory was 130.4MB in the beginning and 70.3MB in the end (delta: 60.1MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB.
[2023-11-23 21:22:13,885 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:22:13,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1772.07ms. Allocated memory is still 161.5MB. Free memory was 130.4MB in the beginning and 123.6MB in the end (delta: 6.8MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB.
[2023-11-23 21:22:13,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.56ms. Allocated memory is still 161.5MB. Free memory was 123.6MB in the beginning and 120.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:22:13,893 INFO L158 Benchmark]: Boogie Preprocessor took 84.06ms. Allocated memory is still 161.5MB. Free memory was 120.7MB in the beginning and 119.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 21:22:13,894 INFO L158 Benchmark]: RCFGBuilder took 535.15ms. Allocated memory is still 161.5MB. Free memory was 119.6MB in the beginning and 104.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-23 21:22:13,894 INFO L158 Benchmark]: TraceAbstraction took 811.83ms. Allocated memory is still 161.5MB. Free memory was 103.9MB in the beginning and 71.3MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2023-11-23 21:22:13,895 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 161.5MB. Free memory was 71.3MB in the beginning and 70.3MB in the end (delta: 984.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:22:13,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1772.07ms. Allocated memory is still 161.5MB. Free memory was 130.4MB in the beginning and 123.6MB in the end (delta: 6.8MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 91.56ms. Allocated memory is still 161.5MB. Free memory was 123.6MB in the beginning and 120.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 84.06ms. Allocated memory is still 161.5MB. Free memory was 120.7MB in the beginning and 119.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 535.15ms. Allocated memory is still 161.5MB. Free memory was 119.6MB in the beginning and 104.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 811.83ms. Allocated memory is still 161.5MB. Free memory was 103.9MB in the beginning and 71.3MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
* Witness Printer took 4.89ms. Allocated memory is still 161.5MB. Free memory was 71.3MB in the beginning and 70.3MB in the end (delta: 984.1kB). 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: 1583]: 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.
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);
[L1569] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}]
[L1414] COND TRUE line != ((void *)0)
[L1569] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_52_bad()
[L1551] int data;
[L1552] data = 0
[L1554] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557] EXPR data = atoi(inputBuffer)
[L1554] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1553-L1563] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_52b_badSink(data)
[L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_52c_badSink(data)
[L1581] COND TRUE data > 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1583] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-23 21:22:13,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-30e01a7
[2023-11-23 21:22:16,702 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 21:22:16,820 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf
[2023-11-23 21:22:16,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 21:22:16,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 21:22:16,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 21:22:16,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 21:22:16,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 21:22:16,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 21:22:16,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 21:22:16,871 INFO L153 SettingsManager]: * User list type=DISABLED
[2023-11-23 21:22:16,872 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-11-23 21:22:16,872 INFO L153 SettingsManager]: * Explicit value domain=true
[2023-11-23 21:22:16,873 INFO L153 SettingsManager]: * Octagon Domain=false
[2023-11-23 21:22:16,874 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2023-11-23 21:22:16,874 INFO L153 SettingsManager]: * Interval Domain=false
[2023-11-23 21:22:16,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 21:22:16,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 21:22:16,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 21:22:16,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 21:22:16,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 21:22:16,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 21:22:16,879 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-23 21:22:16,880 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-23 21:22:16,880 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-23 21:22:16,881 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-23 21:22:16,882 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-23 21:22:16,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 21:22:16,883 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 21:22:16,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 21:22:16,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-23 21:22:16,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 21:22:16,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 21:22:16,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:22:16,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 21:22:16,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 21:22:16,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 21:22:16,887 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS
[2023-11-23 21:22:16,887 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-23 21:22:16,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 21:22:16,888 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 21:22:16,889 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-11-23 21:22:16,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 21:22:16,890 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb
[2023-11-23 21:22:17,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 21:22:17,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 21:22:17,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 21:22:17,347 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 21:22:17,348 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 21:22:17,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i
[2023-11-23 21:22:20,455 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 21:22:21,010 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 21:22:21,011 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i
[2023-11-23 21:22:21,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data/3a9211ac5/39cfeec71c2940499e10035df8828b51/FLAGef7d469d0
[2023-11-23 21:22:21,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/data/3a9211ac5/39cfeec71c2940499e10035df8828b51
[2023-11-23 21:22:21,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 21:22:21,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 21:22:21,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 21:22:21,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 21:22:21,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 21:22:21,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:21" (1/1) ...
[2023-11-23 21:22:21,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d3c99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:21, skipping insertion in model container
[2023-11-23 21:22:21,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:21" (1/1) ...
[2023-11-23 21:22:21,162 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 21:22:21,621 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:22:22,170 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:22:22,185 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 21:22:22,206 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-23 21:22:22,270 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:22:22,412 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:22,412 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:22,412 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:22,412 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:22,413 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:22,413 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:22:22,422 INFO L206 MainTranslator]: Completed translation
[2023-11-23 21:22:22,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22 WrapperNode
[2023-11-23 21:22:22,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 21:22:22,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 21:22:22,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 21:22:22,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 21:22:22,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,493 INFO L138 Inliner]: procedures = 507, calls = 66, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 55
[2023-11-23 21:22:22,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 21:22:22,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 21:22:22,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 21:22:22,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 21:22:22,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 21:22:22,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 21:22:22,537 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 21:22:22,537 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 21:22:22,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (1/1) ...
[2023-11-23 21:22:22,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:22:22,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:22:22,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-23 21:22:22,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-23 21:22:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-23 21:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-23 21:22:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-23 21:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-23 21:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-23 21:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 21:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 21:22:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 21:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-23 21:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-23 21:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-23 21:22:22,809 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 21:22:22,812 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 21:22:23,055 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 21:22:23,100 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 21:22:23,100 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-23 21:22:23,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:23 BoogieIcfgContainer
[2023-11-23 21:22:23,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 21:22:23,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 21:22:23,102 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 21:22:23,105 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 21:22:23,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:21" (1/3) ...
[2023-11-23 21:22:23,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502c1fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:23, skipping insertion in model container
[2023-11-23 21:22:23,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:22" (2/3) ...
[2023-11-23 21:22:23,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502c1fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:23, skipping insertion in model container
[2023-11-23 21:22:23,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:23" (3/3) ...
[2023-11-23 21:22:23,111 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i
[2023-11-23 21:22:23,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 21:22:23,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-23 21:22:23,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 21:22:23,211 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@223328ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 21:22:23,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-23 21:22:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-23 21:22:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-23 21:22:23,231 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:22:23,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:22:23,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:22:23,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:22:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1353982895, now seen corresponding path program 1 times
[2023-11-23 21:22:23,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2023-11-23 21:22:23,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970812137]
[2023-11-23 21:22:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:22:23,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-23 21:22:23,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat
[2023-11-23 21:22:23,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-23 21:22:23,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-11-23 21:22:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:22:23,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-23 21:22:23,458 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:22:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 21:22:23,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:22:23,500 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace
[2023-11-23 21:22:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970812137]
[2023-11-23 21:22:23,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970812137] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:22:23,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 21:22:23,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-23 21:22:23,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795608795]
[2023-11-23 21:22:23,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:22:23,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-23 21:22:23,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS
[2023-11-23 21:22:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-23 21:22:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:22:23,556 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-23 21:22:23,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:22:23,624 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions.
[2023-11-23 21:22:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-23 21:22:23,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2023-11-23 21:22:23,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:22:23,638 INFO L225 Difference]: With dead ends: 20
[2023-11-23 21:22:23,638 INFO L226 Difference]: Without dead ends: 14
[2023-11-23 21:22:23,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 21:22:23,647 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-23 21:22:23,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 29 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-23 21:22:23,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2023-11-23 21:22:23,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2023-11-23 21:22:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-23 21:22:23,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions.
[2023-11-23 21:22:23,697 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11
[2023-11-23 21:22:23,698 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:22:23,699 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions.
[2023-11-23 21:22:23,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-23 21:22:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2023-11-23 21:22:23,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-23 21:22:23,703 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:22:23,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:22:23,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-11-23 21:22:23,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-23 21:22:23,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-23 21:22:23,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:22:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash 976203272, now seen corresponding path program 1 times
[2023-11-23 21:22:23,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2023-11-23 21:22:23,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557575980]
[2023-11-23 21:22:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:22:23,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-23 21:22:23,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat
[2023-11-23 21:22:23,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-23 21:22:23,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-11-23 21:22:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:22:24,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-23 21:22:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 21:22:24,185 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace
[2023-11-23 21:22:24,185 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-23 21:22:24,187 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-23 21:22:24,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-23 21:22:24,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-11-23 21:22:24,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-23 21:22:24,394 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-23 21:22:24,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-23 21:22:24,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:22:24 BoogieIcfgContainer
[2023-11-23 21:22:24,435 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-23 21:22:24,435 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-23 21:22:24,436 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-23 21:22:24,436 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-23 21:22:24,437 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:23" (3/4) ...
[2023-11-23 21:22:24,439 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-23 21:22:24,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-23 21:22:24,441 INFO L158 Benchmark]: Toolchain (without parser) took 3354.88ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 62.6MB in the beginning and 70.4MB in the end (delta: -7.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB.
[2023-11-23 21:22:24,442 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:22:24,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1334.53ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 49.2MB in the end (delta: 13.3MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB.
[2023-11-23 21:22:24,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.26ms. Allocated memory is still 90.2MB. Free memory was 49.2MB in the beginning and 46.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 21:22:24,444 INFO L158 Benchmark]: Boogie Preprocessor took 40.97ms. Allocated memory is still 90.2MB. Free memory was 46.1MB in the beginning and 44.1MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-23 21:22:24,444 INFO L158 Benchmark]: RCFGBuilder took 564.33ms. Allocated memory is still 90.2MB. Free memory was 44.1MB in the beginning and 54.5MB in the end (delta: -10.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB.
[2023-11-23 21:22:24,445 INFO L158 Benchmark]: TraceAbstraction took 1332.74ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 71.1MB in the end (delta: -17.7MB). Peak memory consumption was 897.1kB. Max. memory is 16.1GB.
[2023-11-23 21:22:24,446 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 70.4MB in the end (delta: 663.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 21:22:24,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1334.53ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 49.2MB in the end (delta: 13.3MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 70.26ms. Allocated memory is still 90.2MB. Free memory was 49.2MB in the beginning and 46.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 40.97ms. Allocated memory is still 90.2MB. Free memory was 46.1MB in the beginning and 44.1MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 564.33ms. Allocated memory is still 90.2MB. Free memory was 44.1MB in the beginning and 54.5MB in the end (delta: -10.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 1332.74ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 71.1MB in the end (delta: -17.7MB). Peak memory consumption was 897.1kB. Max. memory is 16.1GB.
* Witness Printer took 4.91ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 70.4MB in the end (delta: 663.6kB). 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: 1583]: 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.
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);
[L1569] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}]
[L1414] COND TRUE line != ((void *)0)
[L1569] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_52_bad()
[L1551] int data;
[L1552] data = 0
[L1554] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557] EXPR data = atoi(inputBuffer)
[L1554] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1553-L1563] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_52b_badSink(data)
[L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_52c_badSink(data)
[L1581] COND TRUE data > 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1583] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-23 21:22:24,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dbee02a-dc93-421b-b8b6-a2e14c2eee5a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample