./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 26d16aaf5f56fbf441718250791516b1764c399a60d53fc01b5628842ed1d1d5
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:44:12,237 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:44:12,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 07:44:12,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:44:12,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:44:12,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:44:12,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:44:12,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:44:12,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:44:12,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:44:12,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:44:12,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:44:12,365 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:44:12,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:44:12,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:44:12,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:44:12,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:44:12,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:44:12,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:44:12,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:44:12,370 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:44:12,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:44:12,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:44:12,371 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:44:12,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:44:12,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:44:12,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:44:12,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:44:12,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:44:12,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:44:12,377 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:44:12,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:44:12,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:44:12,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:44:12,378 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:44:12,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:44:12,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:44:12,379 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:44:12,379 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d16aaf5f56fbf441718250791516b1764c399a60d53fc01b5628842ed1d1d5
[2023-11-19 07:44:12,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:44:12,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:44:12,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:44:12,692 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:44:12,693 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:44:12,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i
[2023-11-19 07:44:15,878 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:44:16,314 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:44:16,315 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i
[2023-11-19 07:44:16,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/data/144199b0f/b980bbc8c7b343e2ba6ffd359956e18b/FLAG95c707c3a
[2023-11-19 07:44:16,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/data/144199b0f/b980bbc8c7b343e2ba6ffd359956e18b
[2023-11-19 07:44:16,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:44:16,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:44:16,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:44:16,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:44:16,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:44:16,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:16" (1/1) ...
[2023-11-19 07:44:16,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a70689a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16, skipping insertion in model container
[2023-11-19 07:44:16,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:16" (1/1) ...
[2023-11-19 07:44:16,437 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:44:16,952 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:44:17,562 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:44:17,575 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:44:17,598 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:44:17,701 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:44:17,845 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:44:17,846 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:44:17,846 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:44:17,846 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:44:17,846 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:44:17,847 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:44:17,856 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:44:17,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17 WrapperNode
[2023-11-19 07:44:17,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:44:17,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:44:17,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:44:17,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:44:17,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,923 INFO L138 Inliner]: procedures = 502, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83
[2023-11-19 07:44:17,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:44:17,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:44:17,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:44:17,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:44:17,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:17,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:44:18,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:44:18,000 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:44:18,000 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:44:18,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (1/1) ...
[2023-11-19 07:44:18,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:44:18,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:44:18,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:44:18,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:44:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine
[2023-11-19 07:44:18,131 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine
[2023-11-19 07:44:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 07:44:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 07:44:18,131 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 07:44:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:44:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-19 07:44:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:44:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:44:18,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:44:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:44:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 07:44:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:44:18,355 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:44:18,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:44:18,562 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:44:18,571 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:44:18,571 INFO L302 CfgBuilder]: Removed 4 assume(true) statements.
[2023-11-19 07:44:18,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:18 BoogieIcfgContainer
[2023-11-19 07:44:18,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:44:18,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:44:18,578 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:44:18,581 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:44:18,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:16" (1/3) ...
[2023-11-19 07:44:18,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdd2ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:18, skipping insertion in model container
[2023-11-19 07:44:18,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:17" (2/3) ...
[2023-11-19 07:44:18,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdd2ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:18, skipping insertion in model container
[2023-11-19 07:44:18,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:18" (3/3) ...
[2023-11-19 07:44:18,584 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_16_good.i
[2023-11-19 07:44:18,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:44:18,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2023-11-19 07:44:18,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:44:18,683 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64c50d45, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:44:18,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2023-11-19 07:44:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 33 states have internal predecessors, (42), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-11-19 07:44:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 07:44:18,697 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:44:18,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:44:18,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2023-11-19 07:44:18,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:44:18,707 INFO L85 PathProgramCache]: Analyzing trace with hash 402569436, now seen corresponding path program 1 times
[2023-11-19 07:44:18,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:44:18,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20335353]
[2023-11-19 07:44:18,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:44:18,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:44:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:18,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 07:44:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:44:18,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:44:18,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20335353]
[2023-11-19 07:44:18,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20335353] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:44:18,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:44:18,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:44:18,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423985798]
[2023-11-19 07:44:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:44:18,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:44:18,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:44:18,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:44:18,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:44:18,977 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 33 states have internal predecessors, (42), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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)
[2023-11-19 07:44:19,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:44:19,001 INFO L93 Difference]: Finished difference Result 72 states and 95 transitions.
[2023-11-19 07:44:19,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:44:19,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 12
[2023-11-19 07:44:19,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:44:19,011 INFO L225 Difference]: With dead ends: 72
[2023-11-19 07:44:19,012 INFO L226 Difference]: Without dead ends: 31
[2023-11-19 07:44:19,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:44:19,019 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:44:19,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:44:19,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2023-11-19 07:44:19,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2023-11-19 07:44:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 26 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-11-19 07:44:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions.
[2023-11-19 07:44:19,060 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 12
[2023-11-19 07:44:19,061 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:44:19,062 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions.
[2023-11-19 07:44:19,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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)
[2023-11-19 07:44:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions.
[2023-11-19 07:44:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 07:44:19,064 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:44:19,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:44:19,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:44:19,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2023-11-19 07:44:19,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:44:19,066 INFO L85 PathProgramCache]: Analyzing trace with hash 20684033, now seen corresponding path program 1 times
[2023-11-19 07:44:19,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:44:19,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138144882]
[2023-11-19 07:44:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:44:19,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:44:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 07:44:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:44:19,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:44:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138144882]
[2023-11-19 07:44:19,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138144882] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:44:19,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:44:19,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:44:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437807919]
[2023-11-19 07:44:19,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:44:19,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:44:19,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:44:19,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:44:19,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,270 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2023-11-19 07:44:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:44:19,296 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions.
[2023-11-19 07:44:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:44:19,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14
[2023-11-19 07:44:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:44:19,298 INFO L225 Difference]: With dead ends: 47
[2023-11-19 07:44:19,298 INFO L226 Difference]: Without dead ends: 34
[2023-11-19 07:44:19,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,300 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:44:19,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 54 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:44:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2023-11-19 07:44:19,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33.
[2023-11-19 07:44:19,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-11-19 07:44:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions.
[2023-11-19 07:44:19,310 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 14
[2023-11-19 07:44:19,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:44:19,311 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions.
[2023-11-19 07:44:19,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2023-11-19 07:44:19,311 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions.
[2023-11-19 07:44:19,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-11-19 07:44:19,312 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:44:19,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:44:19,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:44:19,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2023-11-19 07:44:19,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:44:19,314 INFO L85 PathProgramCache]: Analyzing trace with hash 641205102, now seen corresponding path program 1 times
[2023-11-19 07:44:19,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:44:19,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512426834]
[2023-11-19 07:44:19,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:44:19,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:44:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 07:44:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:44:19,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:44:19,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512426834]
[2023-11-19 07:44:19,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512426834] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:44:19,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:44:19,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:44:19,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109269657]
[2023-11-19 07:44:19,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:44:19,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:44:19,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:44:19,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:44:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,481 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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)
[2023-11-19 07:44:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:44:19,498 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions.
[2023-11-19 07:44:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:44:19,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15
[2023-11-19 07:44:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:44:19,501 INFO L225 Difference]: With dead ends: 33
[2023-11-19 07:44:19,501 INFO L226 Difference]: Without dead ends: 32
[2023-11-19 07:44:19,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,503 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 5 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:44:19,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:44:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2023-11-19 07:44:19,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2023-11-19 07:44:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-11-19 07:44:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions.
[2023-11-19 07:44:19,514 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 15
[2023-11-19 07:44:19,514 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:44:19,514 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions.
[2023-11-19 07:44:19,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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)
[2023-11-19 07:44:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions.
[2023-11-19 07:44:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2023-11-19 07:44:19,516 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:44:19,517 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:44:19,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:44:19,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2023-11-19 07:44:19,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:44:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2023051712, now seen corresponding path program 1 times
[2023-11-19 07:44:19,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:44:19,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375796188]
[2023-11-19 07:44:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:44:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:44:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 07:44:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2023-11-19 07:44:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-19 07:44:19,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:44:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375796188]
[2023-11-19 07:44:19,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375796188] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:44:19,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:44:19,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:44:19,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31845413]
[2023-11-19 07:44:19,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:44:19,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:44:19,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:44:19,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:44:19,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,631 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:44:19,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:44:19,643 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions.
[2023-11-19 07:44:19,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:44:19,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22
[2023-11-19 07:44:19,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:44:19,645 INFO L225 Difference]: With dead ends: 32
[2023-11-19 07:44:19,645 INFO L226 Difference]: Without dead ends: 31
[2023-11-19 07:44:19,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,647 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:44:19,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 57 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:44:19,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2023-11-19 07:44:19,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2023-11-19 07:44:19,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-11-19 07:44:19,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions.
[2023-11-19 07:44:19,657 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22
[2023-11-19 07:44:19,658 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:44:19,658 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions.
[2023-11-19 07:44:19,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:44:19,658 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions.
[2023-11-19 07:44:19,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2023-11-19 07:44:19,660 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:44:19,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:44:19,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:44:19,661 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2023-11-19 07:44:19,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:44:19,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1709906255, now seen corresponding path program 1 times
[2023-11-19 07:44:19,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:44:19,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390505061]
[2023-11-19 07:44:19,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:44:19,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:44:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 07:44:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2023-11-19 07:44:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:44:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-19 07:44:19,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:44:19,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390505061]
[2023-11-19 07:44:19,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390505061] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:44:19,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:44:19,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:44:19,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195534384]
[2023-11-19 07:44:19,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:44:19,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:44:19,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:44:19,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:44:19,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,790 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:44:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:44:19,800 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions.
[2023-11-19 07:44:19,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:44:19,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23
[2023-11-19 07:44:19,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:44:19,801 INFO L225 Difference]: With dead ends: 31
[2023-11-19 07:44:19,801 INFO L226 Difference]: Without dead ends: 0
[2023-11-19 07:44:19,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:44:19,803 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:44:19,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:44:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-19 07:44:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-19 07:44:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:44:19,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-19 07:44:19,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23
[2023-11-19 07:44:19,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:44:19,805 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:44:19,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:44:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-19 07:44:19,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-19 07:44:19,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining)
[2023-11-19 07:44:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining)
[2023-11-19 07:44:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining)
[2023-11-19 07:44:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining)
[2023-11-19 07:44:19,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 07:44:19,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-19 07:44:19,896 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true
[2023-11-19 07:44:19,896 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed.
[2023-11-19 07:44:19,897 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed.
[2023-11-19 07:44:19,897 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed.
[2023-11-19 07:44:19,897 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true
[2023-11-19 07:44:19,897 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed.
[2023-11-19 07:44:19,897 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed.
[2023-11-19 07:44:19,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed.
[2023-11-19 07:44:19,898 INFO L902 garLoopResultBuilder]: At program point L1609(line 1609) the Hoare annotation is: true
[2023-11-19 07:44:19,898 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 1604 1611) no Hoare annotation was computed.
[2023-11-19 07:44:19,898 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647)
[2023-11-19 07:44:19,898 INFO L899 garLoopResultBuilder]: For program point L1609-1(line 1609) no Hoare annotation was computed.
[2023-11-19 07:44:19,898 INFO L895 garLoopResultBuilder]: At program point L1572(line 1572) the Hoare annotation is: (and (<= 0 (+ 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647))
[2023-11-19 07:44:19,899 INFO L899 garLoopResultBuilder]: For program point L1572-1(line 1572) no Hoare annotation was computed.
[2023-11-19 07:44:19,899 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2023-11-19 07:44:19,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed.
[2023-11-19 07:44:19,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2023-11-19 07:44:19,899 INFO L899 garLoopResultBuilder]: For program point L1593(line 1593) no Hoare annotation was computed.
[2023-11-19 07:44:19,899 INFO L899 garLoopResultBuilder]: For program point L1593-1(line 1593) no Hoare annotation was computed.
[2023-11-19 07:44:19,900 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed.
[2023-11-19 07:44:19,900 INFO L895 garLoopResultBuilder]: At program point $Ultimate##28(lines 1590 1597) the Hoare annotation is: (= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0)
[2023-11-19 07:44:19,900 INFO L899 garLoopResultBuilder]: For program point L1581(lines 1581 1598) no Hoare annotation was computed.
[2023-11-19 07:44:19,900 INFO L899 garLoopResultBuilder]: For program point L1548(lines 1548 1580) no Hoare annotation was computed.
[2023-11-19 07:44:19,900 INFO L895 garLoopResultBuilder]: At program point $Ultimate##22(lines 1585 1589) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2))
[2023-11-19 07:44:19,901 INFO L899 garLoopResultBuilder]: For program point L1569(lines 1569 1577) no Hoare annotation was computed.
[2023-11-19 07:44:19,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed.
[2023-11-19 07:44:19,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-19 07:44:19,901 INFO L902 garLoopResultBuilder]: At program point L1594(line 1594) the Hoare annotation is: true
[2023-11-19 07:44:19,901 INFO L899 garLoopResultBuilder]: For program point L1594-1(line 1594) no Hoare annotation was computed.
[2023-11-19 07:44:19,901 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-19 07:44:19,902 INFO L902 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: true
[2023-11-19 07:44:19,902 INFO L899 garLoopResultBuilder]: For program point L1607-1(line 1607) no Hoare annotation was computed.
[2023-11-19 07:44:19,902 INFO L895 garLoopResultBuilder]: At program point $Ultimate##14(lines 1567 1579) the Hoare annotation is: (< |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)
[2023-11-19 07:44:19,902 INFO L895 garLoopResultBuilder]: At program point $Ultimate##5(lines 1552 1566) the Hoare annotation is: (and (<= 0 (+ 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647))
[2023-11-19 07:44:19,902 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1603) no Hoare annotation was computed.
[2023-11-19 07:44:19,903 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed.
[2023-11-19 07:44:19,903 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (<= 0 (+ 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647))
[2023-11-19 07:44:19,903 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed.
[2023-11-19 07:44:19,903 INFO L899 garLoopResultBuilder]: For program point L1571(line 1571) no Hoare annotation was computed.
[2023-11-19 07:44:19,903 INFO L899 garLoopResultBuilder]: For program point L1571-1(line 1571) no Hoare annotation was computed.
[2023-11-19 07:44:19,907 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2023-11-19 07:44:19,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:44:19,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:44:19 BoogieIcfgContainer
[2023-11-19 07:44:19,921 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:44:19,922 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:44:19,922 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:44:19,922 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:44:19,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:18" (3/4) ...
[2023-11-19 07:44:19,925 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-19 07:44:19,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine
[2023-11-19 07:44:19,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine
[2023-11-19 07:44:19,933 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2023-11-19 07:44:19,934 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2023-11-19 07:44:19,934 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-19 07:44:19,934 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-19 07:44:20,050 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:44:20,053 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/witness.yml
[2023-11-19 07:44:20,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:44:20,054 INFO L158 Benchmark]: Toolchain (without parser) took 3688.39ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 106.8MB in the beginning and 88.3MB in the end (delta: 18.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
[2023-11-19 07:44:20,054 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:44:20,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1491.33ms. Allocated memory is still 140.5MB. Free memory was 106.8MB in the beginning and 99.6MB in the end (delta: 7.2MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB.
[2023-11-19 07:44:20,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.81ms. Allocated memory is still 140.5MB. Free memory was 99.6MB in the beginning and 96.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:44:20,055 INFO L158 Benchmark]: Boogie Preprocessor took 75.23ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 94.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:44:20,056 INFO L158 Benchmark]: RCFGBuilder took 575.31ms. Allocated memory is still 140.5MB. Free memory was 94.9MB in the beginning and 81.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 07:44:20,057 INFO L158 Benchmark]: TraceAbstraction took 1343.93ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 80.8MB in the beginning and 93.6MB in the end (delta: -12.8MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB.
[2023-11-19 07:44:20,057 INFO L158 Benchmark]: Witness Printer took 131.14ms. Allocated memory is still 172.0MB. Free memory was 93.6MB in the beginning and 88.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 07:44:20,060 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1491.33ms. Allocated memory is still 140.5MB. Free memory was 106.8MB in the beginning and 99.6MB in the end (delta: 7.2MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 64.81ms. Allocated memory is still 140.5MB. Free memory was 99.6MB in the beginning and 96.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 75.23ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 94.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 575.31ms. Allocated memory is still 140.5MB. Free memory was 94.9MB in the beginning and 81.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 1343.93ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 80.8MB in the beginning and 93.6MB in the end (delta: -12.8MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB.
* Witness Printer took 131.14ms. Allocated memory is still 172.0MB. Free memory was 93.6MB in the beginning and 88.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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
- PositiveResult [Line: 1571]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 1571]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 1593]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 1593]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 168 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 21 PreInvPairs, 29 NumberOfFragments, 48 HoareAnnotationTreeSize, 21 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 115 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 8/8 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
- AllSpecificationsHoldResult: All specifications hold
4 specifications checked. All of them hold
- InvariantResult [Line: 1590]: Loop Invariant
Derived loop invariant: ((data + 2) == 0)
- InvariantResult [Line: 1552]: Loop Invariant
Derived loop invariant: ((0 <= (2147483647 + data)) && (data <= 2147483647))
- InvariantResult [Line: 1567]: Loop Invariant
Derived loop invariant: (data < 2147483648)
- InvariantResult [Line: 1585]: Loop Invariant
Derived loop invariant: (0 <= (data + 2))
RESULT: Ultimate proved your program to be correct!
[2023-11-19 07:44:20,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721ed809-4000-46fd-8400-8220f8ad0d6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE