./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c --full-output --architecture 64bit


--------------------------------------------------------------------------------


Checking for overflows
Using default analysis
Version ae007674
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 2d15f7a175b7227b2fe35aa1981e666cdccea86724b9e7e9c290d14ef6b6263a
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-ae00767
[2021-12-28 08:41:44,188 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-12-28 08:41:44,190 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-28 08:41:44,221 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-28 08:41:44,221 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-28 08:41:44,224 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-28 08:41:44,225 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-28 08:41:44,229 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-28 08:41:44,232 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-28 08:41:44,235 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-28 08:41:44,236 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-12-28 08:41:44,237 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-28 08:41:44,238 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-28 08:41:44,240 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-28 08:41:44,241 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-28 08:41:44,243 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-28 08:41:44,244 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-28 08:41:44,244 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-28 08:41:44,248 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-28 08:41:44,253 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-28 08:41:44,254 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-28 08:41:44,255 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-28 08:41:44,256 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-12-28 08:41:44,257 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-28 08:41:44,262 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-28 08:41:44,263 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-28 08:41:44,263 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-28 08:41:44,264 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-28 08:41:44,265 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-28 08:41:44,266 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-28 08:41:44,266 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-28 08:41:44,266 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-28 08:41:44,268 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-28 08:41:44,268 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-28 08:41:44,269 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-28 08:41:44,269 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-28 08:41:44,270 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-28 08:41:44,270 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-28 08:41:44,270 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-28 08:41:44,271 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-28 08:41:44,272 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-12-28 08:41:44,275 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2021-12-28 08:41:44,305 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-12-28 08:41:44,305 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-28 08:41:44,306 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-28 08:41:44,306 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-28 08:41:44,307 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-28 08:41:44,307 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-28 08:41:44,308 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-28 08:41:44,309 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-12-28 08:41:44,309 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-12-28 08:41:44,309 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-28 08:41:44,310 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-12-28 08:41:44,310 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-12-28 08:41:44,310 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-12-28 08:41:44,310 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-12-28 08:41:44,310 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-28 08:41:44,311 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-12-28 08:41:44,311 INFO  L138        SettingsManager]:  * Check absence of signed integer overflows=true
[2021-12-28 08:41:44,311 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-12-28 08:41:44,311 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-12-28 08:41:44,311 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-12-28 08:41:44,311 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-28 08:41:44,311 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-12-28 08:41:44,312 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-12-28 08:41:44,312 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-28 08:41:44,312 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-28 08:41:44,312 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-12-28 08:41:44,317 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-28 08:41:44,317 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-12-28 08:41:44,317 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-28 08:41:44,317 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-28 08:41:44,318 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> 2d15f7a175b7227b2fe35aa1981e666cdccea86724b9e7e9c290d14ef6b6263a
[2021-12-28 08:41:44,576 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-28 08:41:44,595 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-28 08:41:44,598 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-28 08:41:44,599 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-12-28 08:41:44,600 INFO  L275        PluginConnector]: CDTParser initialized
[2021-12-28 08:41:44,601 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c
[2021-12-28 08:41:44,651 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d85632e/5fc3f4a860e7425e8944bcff6585dc6c/FLAGc4004c845
[2021-12-28 08:41:44,997 INFO  L306              CDTParser]: Found 1 translation units.
[2021-12-28 08:41:44,998 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c
[2021-12-28 08:41:45,002 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d85632e/5fc3f4a860e7425e8944bcff6585dc6c/FLAGc4004c845
[2021-12-28 08:41:45,016 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d85632e/5fc3f4a860e7425e8944bcff6585dc6c
[2021-12-28 08:41:45,018 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-28 08:41:45,019 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-28 08:41:45,022 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-28 08:41:45,022 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-28 08:41:45,025 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-28 08:41:45,025 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,026 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371ae673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45, skipping insertion in model container
[2021-12-28 08:41:45,026 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,031 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-12-28 08:41:45,041 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-12-28 08:41:45,170 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-28 08:41:45,173 INFO  L203         MainTranslator]: Completed pre-run
[2021-12-28 08:41:45,188 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-28 08:41:45,196 INFO  L208         MainTranslator]: Completed translation
[2021-12-28 08:41:45,197 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45 WrapperNode
[2021-12-28 08:41:45,197 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-28 08:41:45,198 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-28 08:41:45,198 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-28 08:41:45,198 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-28 08:41:45,204 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,207 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,227 INFO  L137                Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68
[2021-12-28 08:41:45,227 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-28 08:41:45,234 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-28 08:41:45,235 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-28 08:41:45,235 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-12-28 08:41:45,241 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,241 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,246 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,247 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,251 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,257 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,260 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,262 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-28 08:41:45,264 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-28 08:41:45,264 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-12-28 08:41:45,264 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-12-28 08:41:45,265 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (1/1) ...
[2021-12-28 08:41:45,270 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-28 08:41:45,279 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-28 08:41:45,311 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-28 08:41:45,334 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-28 08:41:45,346 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-28 08:41:45,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-28 08:41:45,391 INFO  L234             CfgBuilder]: Building ICFG
[2021-12-28 08:41:45,393 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-28 08:41:45,519 INFO  L275             CfgBuilder]: Performing block encoding
[2021-12-28 08:41:45,524 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-28 08:41:45,524 INFO  L299             CfgBuilder]: Removed 3 assume(true) statements.
[2021-12-28 08:41:45,526 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:41:45 BoogieIcfgContainer
[2021-12-28 08:41:45,526 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-28 08:41:45,527 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-28 08:41:45,527 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-12-28 08:41:45,529 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-12-28 08:41:45,529 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:41:45" (1/3) ...
[2021-12-28 08:41:45,530 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30abcf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:41:45, skipping insertion in model container
[2021-12-28 08:41:45,530 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:45" (2/3) ...
[2021-12-28 08:41:45,530 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30abcf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:41:45, skipping insertion in model container
[2021-12-28 08:41:45,531 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:41:45" (3/3) ...
[2021-12-28 08:41:45,531 INFO  L111   eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig2b.c
[2021-12-28 08:41:45,535 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-28 08:41:45,535 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations.
[2021-12-28 08:41:45,565 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-28 08:41:45,570 INFO  L339      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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-12-28 08:41:45,570 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 20 error locations.
[2021-12-28 08:41:45,585 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 50 states have internal predecessors, (58), 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)
[2021-12-28 08:41:45,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2021-12-28 08:41:45,589 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-28 08:41:45,589 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2021-12-28 08:41:45,590 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] ===
[2021-12-28 08:41:45,597 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-28 08:41:45,597 INFO  L85        PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times
[2021-12-28 08:41:45,603 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-28 08:41:45,604 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548603322]
[2021-12-28 08:41:45,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-28 08:41:45,605 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-28 08:41:45,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-28 08:41:45,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-28 08:41:45,738 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-28 08:41:45,738 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548603322]
[2021-12-28 08:41:45,738 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548603322] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-28 08:41:45,739 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-28 08:41:45,739 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-28 08:41:45,740 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999965057]
[2021-12-28 08:41:45,740 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-28 08:41:45,743 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-28 08:41:45,743 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-28 08:41:45,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-28 08:41:45,760 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-28 08:41:45,762 INFO  L87              Difference]: Start difference. First operand  has 51 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 50 states have internal predecessors, (58), 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) Second operand  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2021-12-28 08:41:45,813 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-28 08:41:45,814 INFO  L93              Difference]: Finished difference Result 100 states and 117 transitions.
[2021-12-28 08:41:45,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-28 08:41:45,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4
[2021-12-28 08:41:45,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-28 08:41:45,820 INFO  L225             Difference]: With dead ends: 100
[2021-12-28 08:41:45,821 INFO  L226             Difference]: Without dead ends: 47
[2021-12-28 08:41:45,823 INFO  L932         BasicCegarLoop]: 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
[2021-12-28 08:41:45,825 INFO  L933         BasicCegarLoop]: 25 mSDtfsCounter, 43 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-28 08:41:45,826 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 30 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-28 08:41:45,837 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2021-12-28 08:41:45,849 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45.
[2021-12-28 08:41:45,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 44 states have internal predecessors, (49), 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)
[2021-12-28 08:41:45,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions.
[2021-12-28 08:41:45,855 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 4
[2021-12-28 08:41:45,856 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-28 08:41:45,856 INFO  L470      AbstractCegarLoop]: Abstraction has 45 states and 49 transitions.
[2021-12-28 08:41:45,856 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2021-12-28 08:41:45,856 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions.
[2021-12-28 08:41:45,857 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2021-12-28 08:41:45,857 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-28 08:41:45,857 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2021-12-28 08:41:45,857 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-12-28 08:41:45,858 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] ===
[2021-12-28 08:41:45,859 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-28 08:41:45,860 INFO  L85        PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times
[2021-12-28 08:41:45,860 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-28 08:41:45,861 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711449652]
[2021-12-28 08:41:45,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-28 08:41:45,861 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-28 08:41:45,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-28 08:41:45,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-28 08:41:45,909 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-28 08:41:45,909 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711449652]
[2021-12-28 08:41:45,909 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711449652] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-28 08:41:45,910 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-28 08:41:45,910 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-28 08:41:45,911 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758135702]
[2021-12-28 08:41:45,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-28 08:41:45,912 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-28 08:41:45,912 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-28 08:41:45,914 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-28 08:41:45,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-28 08:41:45,915 INFO  L87              Difference]: Start difference. First operand 45 states and 49 transitions. Second operand  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2021-12-28 08:41:45,974 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-28 08:41:45,975 INFO  L93              Difference]: Finished difference Result 45 states and 49 transitions.
[2021-12-28 08:41:45,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-28 08:41:45,975 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5
[2021-12-28 08:41:45,976 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-28 08:41:45,977 INFO  L225             Difference]: With dead ends: 45
[2021-12-28 08:41:45,978 INFO  L226             Difference]: Without dead ends: 44
[2021-12-28 08:41:45,978 INFO  L932         BasicCegarLoop]: 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
[2021-12-28 08:41:45,979 INFO  L933         BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-12-28 08:41:45,980 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-12-28 08:41:45,982 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2021-12-28 08:41:45,985 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2021-12-28 08:41:45,986 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 43 states have internal predecessors, (48), 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)
[2021-12-28 08:41:45,987 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions.
[2021-12-28 08:41:45,988 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 5
[2021-12-28 08:41:45,988 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-28 08:41:45,988 INFO  L470      AbstractCegarLoop]: Abstraction has 44 states and 48 transitions.
[2021-12-28 08:41:45,989 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2021-12-28 08:41:45,989 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions.
[2021-12-28 08:41:45,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2021-12-28 08:41:45,990 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-28 08:41:45,990 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2021-12-28 08:41:45,990 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-12-28 08:41:45,990 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] ===
[2021-12-28 08:41:45,991 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-28 08:41:45,991 INFO  L85        PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times
[2021-12-28 08:41:45,991 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-28 08:41:45,991 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993625324]
[2021-12-28 08:41:45,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-28 08:41:45,992 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-28 08:41:46,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-12-28 08:41:46,006 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-12-28 08:41:46,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-12-28 08:41:46,026 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-12-28 08:41:46,027 INFO  L628         BasicCegarLoop]: Counterexample is feasible
[2021-12-28 08:41:46,028 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining)
[2021-12-28 08:41:46,029 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining)
[2021-12-28 08:41:46,030 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining)
[2021-12-28 08:41:46,030 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining)
[2021-12-28 08:41:46,035 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining)
[2021-12-28 08:41:46,035 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining)
[2021-12-28 08:41:46,035 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining)
[2021-12-28 08:41:46,036 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining)
[2021-12-28 08:41:46,036 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining)
[2021-12-28 08:41:46,039 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining)
[2021-12-28 08:41:46,039 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining)
[2021-12-28 08:41:46,039 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining)
[2021-12-28 08:41:46,039 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining)
[2021-12-28 08:41:46,039 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining)
[2021-12-28 08:41:46,040 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining)
[2021-12-28 08:41:46,040 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining)
[2021-12-28 08:41:46,040 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining)
[2021-12-28 08:41:46,040 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining)
[2021-12-28 08:41:46,040 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining)
[2021-12-28 08:41:46,041 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining)
[2021-12-28 08:41:46,041 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-12-28 08:41:46,044 INFO  L732         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2021-12-28 08:41:46,046 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-12-28 08:41:46,063 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 08:41:46 BoogieIcfgContainer
[2021-12-28 08:41:46,063 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-12-28 08:41:46,064 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-12-28 08:41:46,064 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-12-28 08:41:46,064 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-12-28 08:41:46,064 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:41:45" (3/4) ...
[2021-12-28 08:41:46,067 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-12-28 08:41:46,091 INFO  L141         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-12-28 08:41:46,091 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-12-28 08:41:46,091 INFO  L158              Benchmark]: Toolchain (without parser) took 1071.99ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 39.1MB in the end (delta: -7.4MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB.
[2021-12-28 08:41:46,092 INFO  L158              Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-12-28 08:41:46,092 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 175.37ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 36.1MB in the end (delta: -4.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB.
[2021-12-28 08:41:46,092 INFO  L158              Benchmark]: Boogie Procedure Inliner took 29.84ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 36.1MB in the beginning and 51.3MB in the end (delta: -15.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB.
[2021-12-28 08:41:46,093 INFO  L158              Benchmark]: Boogie Preprocessor took 28.66ms. Allocated memory is still 67.1MB. Free memory was 51.2MB in the beginning and 50.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-12-28 08:41:46,093 INFO  L158              Benchmark]: RCFGBuilder took 262.12ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 39.5MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-12-28 08:41:46,093 INFO  L158              Benchmark]: TraceAbstraction took 536.12ms. Allocated memory is still 67.1MB. Free memory was 39.0MB in the beginning and 40.6MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-12-28 08:41:46,093 INFO  L158              Benchmark]: Witness Printer took 27.37ms. Allocated memory is still 67.1MB. Free memory was 40.6MB in the beginning and 39.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-28 08:41:46,096 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 175.37ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 36.1MB in the end (delta: -4.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 29.84ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 36.1MB in the beginning and 51.3MB in the end (delta: -15.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 28.66ms. Allocated memory is still 67.1MB. Free memory was 51.2MB in the beginning and 50.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 262.12ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 39.5MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 536.12ms. Allocated memory is still 67.1MB. Free memory was 39.0MB in the beginning and 40.6MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Printer took 27.37ms. Allocated memory is still 67.1MB. Free memory was 40.6MB in the beginning and 39.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 19]: integer overflow possible
    integer overflow possible
We found a FailurePath: 
[L14]             int x, y;
[L15]             x = __VERIFIER_nondet_int()
[L16]             y = __VERIFIER_nondet_int()
[L17]  COND TRUE  x >= 2
       VAL        [x=2, y=2147483647]
[L18]  EXPR       x - 1
[L18]             x = x - 1
       VAL        [x=1, y=2147483647]
[L19]             y + x
       VAL        [x=1, y=2147483647]

  - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 29]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 29]: 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 1 procedures, 51 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 71 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2021-12-28 08:41:46,127 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)