./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test27-2.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 5fbdf5bf
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/ldv-regression/test27-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2292364e3df3925555991c57490c078c89b959e0
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b
[2021-08-29 09:06:54,183 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-08-29 09:06:54,185 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-08-29 09:06:54,219 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-08-29 09:06:54,219 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-08-29 09:06:54,222 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-08-29 09:06:54,223 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-08-29 09:06:54,228 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-08-29 09:06:54,229 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-08-29 09:06:54,233 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-08-29 09:06:54,234 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-08-29 09:06:54,237 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-08-29 09:06:54,238 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-08-29 09:06:54,238 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-08-29 09:06:54,239 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-08-29 09:06:54,239 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-08-29 09:06:54,240 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-08-29 09:06:54,240 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-08-29 09:06:54,241 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-08-29 09:06:54,243 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-08-29 09:06:54,243 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-08-29 09:06:54,244 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-08-29 09:06:54,245 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-08-29 09:06:54,245 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-08-29 09:06:54,247 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-08-29 09:06:54,247 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-08-29 09:06:54,247 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-08-29 09:06:54,247 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-08-29 09:06:54,248 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-08-29 09:06:54,248 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-08-29 09:06:54,248 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-08-29 09:06:54,249 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-08-29 09:06:54,249 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-08-29 09:06:54,250 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-08-29 09:06:54,250 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-08-29 09:06:54,250 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-08-29 09:06:54,251 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-08-29 09:06:54,251 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-08-29 09:06:54,251 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-08-29 09:06:54,252 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-08-29 09:06:54,252 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-08-29 09:06:54,257 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-08-29 09:06:54,274 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-08-29 09:06:54,274 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-08-29 09:06:54,275 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-08-29 09:06:54,275 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-08-29 09:06:54,275 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-08-29 09:06:54,275 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-08-29 09:06:54,276 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-08-29 09:06:54,276 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-08-29 09:06:54,277 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-08-29 09:06:54,277 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-08-29 09:06:54,277 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-08-29 09:06:54,277 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-08-29 09:06:54,277 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-08-29 09:06:54,283 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-29 09:06:54,283 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-08-29 09:06:54,283 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-08-29 09:06:54,284 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-08-29 09:06:54,284 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-08-29 09:06:54,284 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-08-29 09:06:54,284 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-08-29 09:06:54,284 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-08-29 09:06:54,284 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 ! call(reach_error())) )


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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2292364e3df3925555991c57490c078c89b959e0
[2021-08-29 09:06:54,482 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-08-29 09:06:54,501 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-08-29 09:06:54,503 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-08-29 09:06:54,504 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-08-29 09:06:54,504 INFO  L275        PluginConnector]: CDTParser initialized
[2021-08-29 09:06:54,505 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test27-2.c
[2021-08-29 09:06:54,549 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c30d3b1/b2a36c7b55c54b01a9cdf2c54581d8ab/FLAGbc9243fdf
[2021-08-29 09:06:54,857 INFO  L306              CDTParser]: Found 1 translation units.
[2021-08-29 09:06:54,857 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test27-2.c
[2021-08-29 09:06:54,862 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c30d3b1/b2a36c7b55c54b01a9cdf2c54581d8ab/FLAGbc9243fdf
[2021-08-29 09:06:55,279 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c30d3b1/b2a36c7b55c54b01a9cdf2c54581d8ab
[2021-08-29 09:06:55,284 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-08-29 09:06:55,285 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-08-29 09:06:55,286 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-08-29 09:06:55,286 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-08-29 09:06:55,289 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-08-29 09:06:55,289 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,292 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca8a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55, skipping insertion in model container
[2021-08-29 09:06:55,292 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,296 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-08-29 09:06:55,306 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-08-29 09:06:55,404 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test27-2.c[1224,1237]
[2021-08-29 09:06:55,407 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-08-29 09:06:55,411 INFO  L203         MainTranslator]: Completed pre-run
[2021-08-29 09:06:55,423 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test27-2.c[1224,1237]
[2021-08-29 09:06:55,424 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-08-29 09:06:55,431 INFO  L208         MainTranslator]: Completed translation
[2021-08-29 09:06:55,432 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55 WrapperNode
[2021-08-29 09:06:55,432 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-08-29 09:06:55,433 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-08-29 09:06:55,433 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-08-29 09:06:55,433 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-08-29 09:06:55,464 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,470 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,497 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-08-29 09:06:55,498 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-08-29 09:06:55,498 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-08-29 09:06:55,498 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-08-29 09:06:55,503 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,503 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,511 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,512 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,524 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,526 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,527 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,528 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-08-29 09:06:55,528 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-08-29 09:06:55,528 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-08-29 09:06:55,528 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-08-29 09:06:55,529 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (1/1) ...
[2021-08-29 09:06:55,535 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-29 09:06:55,541 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-29 09:06:55,554 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)
[2021-08-29 09:06:55,561 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
[2021-08-29 09:06:55,585 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-08-29 09:06:55,586 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-08-29 09:06:55,587 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-08-29 09:06:55,587 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-08-29 09:06:55,587 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-08-29 09:06:55,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-08-29 09:06:55,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-08-29 09:06:55,587 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-08-29 09:06:55,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-08-29 09:06:55,765 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-08-29 09:06:55,765 INFO  L299             CfgBuilder]: Removed 8 assume(true) statements.
[2021-08-29 09:06:55,766 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:06:55 BoogieIcfgContainer
[2021-08-29 09:06:55,766 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-08-29 09:06:55,767 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-08-29 09:06:55,767 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-08-29 09:06:55,769 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-08-29 09:06:55,769 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:06:55" (1/3) ...
[2021-08-29 09:06:55,770 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788a8c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:06:55, skipping insertion in model container
[2021-08-29 09:06:55,770 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:06:55" (2/3) ...
[2021-08-29 09:06:55,770 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788a8c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:06:55, skipping insertion in model container
[2021-08-29 09:06:55,770 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:06:55" (3/3) ...
[2021-08-29 09:06:55,771 INFO  L111   eAbstractionObserver]: Analyzing ICFG test27-2.c
[2021-08-29 09:06:55,774 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-08-29 09:06:55,774 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-08-29 09:06:55,801 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-08-29 09:06:55,806 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, mConcurrency=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
[2021-08-29 09:06:55,806 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-08-29 09:06:55,821 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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)
[2021-08-29 09:06:55,824 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2021-08-29 09:06:55,824 INFO  L505         BasicCegarLoop]: Found error trace
[2021-08-29 09:06:55,824 INFO  L513         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-29 09:06:55,825 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-08-29 09:06:55,828 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-29 09:06:55,828 INFO  L82        PathProgramCache]: Analyzing trace with hash -631347226, now seen corresponding path program 1 times
[2021-08-29 09:06:55,833 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-29 09:06:55,833 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927074959]
[2021-08-29 09:06:55,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 09:06:55,834 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-29 09:06:55,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-29 09:06:56,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 09:06:56,020 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-29 09:06:56,020 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927074959]
[2021-08-29 09:06:56,021 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927074959] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-29 09:06:56,021 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-29 09:06:56,021 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-08-29 09:06:56,022 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596661976]
[2021-08-29 09:06:56,026 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-08-29 09:06:56,026 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-29 09:06:56,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-08-29 09:06:56,047 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-08-29 09:06:56,049 INFO  L87              Difference]: Start difference. First operand  has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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)
[2021-08-29 09:06:56,120 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-29 09:06:56,120 INFO  L93              Difference]: Finished difference Result 32 states and 44 transitions.
[2021-08-29 09:06:56,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-29 09:06:56,123 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10
[2021-08-29 09:06:56,124 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-29 09:06:56,128 INFO  L225             Difference]: With dead ends: 32
[2021-08-29 09:06:56,128 INFO  L226             Difference]: Without dead ends: 15
[2021-08-29 09:06:56,131 INFO  L927         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-08-29 09:06:56,136 INFO  L928         BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.03ms IncrementalHoareTripleChecker+Time
[2021-08-29 09:06:56,137 INFO  L929         BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 55.03ms Time]
[2021-08-29 09:06:56,149 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2021-08-29 09:06:56,161 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14.
[2021-08-29 09:06:56,162 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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)
[2021-08-29 09:06:56,163 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions.
[2021-08-29 09:06:56,164 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10
[2021-08-29 09:06:56,164 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-08-29 09:06:56,164 INFO  L470      AbstractCegarLoop]: Abstraction has 14 states and 15 transitions.
[2021-08-29 09:06:56,165 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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)
[2021-08-29 09:06:56,166 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions.
[2021-08-29 09:06:56,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-08-29 09:06:56,166 INFO  L505         BasicCegarLoop]: Found error trace
[2021-08-29 09:06:56,166 INFO  L513         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-29 09:06:56,167 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-08-29 09:06:56,167 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-08-29 09:06:56,169 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-29 09:06:56,169 INFO  L82        PathProgramCache]: Analyzing trace with hash -1434190826, now seen corresponding path program 1 times
[2021-08-29 09:06:56,169 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-29 09:06:56,170 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704584149]
[2021-08-29 09:06:56,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 09:06:56,170 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-29 09:06:56,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-29 09:06:56,240 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 09:06:56,241 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-29 09:06:56,241 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704584149]
[2021-08-29 09:06:56,241 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704584149] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-29 09:06:56,242 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742133138]
[2021-08-29 09:06:56,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 09:06:56,242 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-29 09:06:56,242 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-29 09:06:56,244 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-29 09:06:56,245 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-08-29 09:06:56,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-29 09:06:56,324 INFO  L263         TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-08-29 09:06:56,327 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-29 09:06:56,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 09:06:56,370 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-08-29 09:06:56,405 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 09:06:56,405 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [742133138] provided 0 perfect and 2 imperfect interpolant sequences
[2021-08-29 09:06:56,405 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences.
[2021-08-29 09:06:56,405 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2021-08-29 09:06:56,406 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949365840]
[2021-08-29 09:06:56,407 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-08-29 09:06:56,407 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-29 09:06:56,407 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-08-29 09:06:56,407 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2021-08-29 09:06:56,407 INFO  L87              Difference]: Start difference. First operand 14 states and 15 transitions. Second operand  has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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)
[2021-08-29 09:06:56,454 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-29 09:06:56,454 INFO  L93              Difference]: Finished difference Result 29 states and 33 transitions.
[2021-08-29 09:06:56,454 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-29 09:06:56,454 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 13
[2021-08-29 09:06:56,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-29 09:06:56,455 INFO  L225             Difference]: With dead ends: 29
[2021-08-29 09:06:56,455 INFO  L226             Difference]: Without dead ends: 20
[2021-08-29 09:06:56,455 INFO  L927         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.30ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2021-08-29 09:06:56,456 INFO  L928         BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.18ms IncrementalHoareTripleChecker+Time
[2021-08-29 09:06:56,456 INFO  L929         BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 50 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 41.18ms Time]
[2021-08-29 09:06:56,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2021-08-29 09:06:56,458 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2021-08-29 09:06:56,459 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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)
[2021-08-29 09:06:56,459 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2021-08-29 09:06:56,459 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13
[2021-08-29 09:06:56,459 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-08-29 09:06:56,459 INFO  L470      AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2021-08-29 09:06:56,459 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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)
[2021-08-29 09:06:56,459 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2021-08-29 09:06:56,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-08-29 09:06:56,460 INFO  L505         BasicCegarLoop]: Found error trace
[2021-08-29 09:06:56,460 INFO  L513         BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-29 09:06:56,479 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-08-29 09:06:56,676 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-29 09:06:56,677 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-08-29 09:06:56,677 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-29 09:06:56,677 INFO  L82        PathProgramCache]: Analyzing trace with hash -1444204464, now seen corresponding path program 2 times
[2021-08-29 09:06:56,678 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-29 09:06:56,678 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829598685]
[2021-08-29 09:06:56,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 09:06:56,678 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-29 09:06:56,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-29 09:06:56,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 09:06:56,777 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-29 09:06:56,778 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829598685]
[2021-08-29 09:06:56,778 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829598685] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-29 09:06:56,778 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942866286]
[2021-08-29 09:06:56,779 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-08-29 09:06:56,779 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-29 09:06:56,779 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-29 09:06:56,780 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-29 09:06:56,781 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-08-29 09:06:56,844 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-08-29 09:06:56,844 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-08-29 09:06:56,845 INFO  L263         TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-08-29 09:06:56,846 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-29 09:06:56,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 09:06:56,886 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-08-29 09:06:56,978 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 09:06:56,980 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942866286] provided 0 perfect and 2 imperfect interpolant sequences
[2021-08-29 09:06:56,980 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences.
[2021-08-29 09:06:56,980 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2021-08-29 09:06:56,980 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956342914]
[2021-08-29 09:06:56,981 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-08-29 09:06:56,981 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-29 09:06:56,982 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-08-29 09:06:56,983 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2021-08-29 09:06:56,983 INFO  L87              Difference]: Start difference. First operand 20 states and 21 transitions. Second operand  has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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)
[2021-08-29 09:06:57,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-29 09:06:57,064 INFO  L93              Difference]: Finished difference Result 41 states and 48 transitions.
[2021-08-29 09:06:57,064 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2021-08-29 09:06:57,065 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 19
[2021-08-29 09:06:57,065 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-29 09:06:57,066 INFO  L225             Difference]: With dead ends: 41
[2021-08-29 09:06:57,066 INFO  L226             Difference]: Without dead ends: 32
[2021-08-29 09:06:57,067 INFO  L927         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 49.07ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2021-08-29 09:06:57,069 INFO  L928         BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.59ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.56ms IncrementalHoareTripleChecker+Time
[2021-08-29 09:06:57,070 INFO  L929         BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 1.59ms Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 62.56ms Time]
[2021-08-29 09:06:57,071 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2021-08-29 09:06:57,077 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2021-08-29 09:06:57,077 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 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)
[2021-08-29 09:06:57,078 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions.
[2021-08-29 09:06:57,078 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19
[2021-08-29 09:06:57,078 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-08-29 09:06:57,079 INFO  L470      AbstractCegarLoop]: Abstraction has 32 states and 33 transitions.
[2021-08-29 09:06:57,079 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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)
[2021-08-29 09:06:57,079 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions.
[2021-08-29 09:06:57,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-08-29 09:06:57,081 INFO  L505         BasicCegarLoop]: Found error trace
[2021-08-29 09:06:57,081 INFO  L513         BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-29 09:06:57,100 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-08-29 09:06:57,286 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2021-08-29 09:06:57,286 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-08-29 09:06:57,287 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-29 09:06:57,287 INFO  L82        PathProgramCache]: Analyzing trace with hash -1003651516, now seen corresponding path program 3 times
[2021-08-29 09:06:57,288 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-29 09:06:57,288 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002360806]
[2021-08-29 09:06:57,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 09:06:57,288 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-29 09:06:57,592 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-29 09:06:57,593 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-08-29 09:06:57,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-29 09:06:57,783 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-08-29 09:06:57,783 INFO  L627         BasicCegarLoop]: Counterexample is feasible
[2021-08-29 09:06:57,784 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-08-29 09:06:57,785 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-08-29 09:06:57,789 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-08-29 09:06:57,813 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:06:57 BoogieIcfgContainer
[2021-08-29 09:06:57,813 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-08-29 09:06:57,814 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-08-29 09:06:57,814 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-08-29 09:06:57,814 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-08-29 09:06:57,814 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:06:55" (3/4) ...
[2021-08-29 09:06:57,815 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-08-29 09:06:57,843 INFO  L141         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-08-29 09:06:57,844 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-08-29 09:06:57,844 INFO  L158              Benchmark]: Toolchain (without parser) took 2559.08ms. Allocated memory was 60.8MB in the beginning and 100.7MB in the end (delta: 39.8MB). Free memory was 39.7MB in the beginning and 57.5MB in the end (delta: -17.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB.
[2021-08-29 09:06:57,844 INFO  L158              Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-08-29 09:06:57,845 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 146.00ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 29.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-08-29 09:06:57,845 INFO  L158              Benchmark]: Boogie Procedure Inliner took 64.69ms. Allocated memory is still 60.8MB. Free memory was 29.3MB in the beginning and 43.6MB in the end (delta: -14.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2021-08-29 09:06:57,845 INFO  L158              Benchmark]: Boogie Preprocessor took 29.94ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-08-29 09:06:57,845 INFO  L158              Benchmark]: RCFGBuilder took 237.96ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 30.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-08-29 09:06:57,846 INFO  L158              Benchmark]: TraceAbstraction took 2045.91ms. Allocated memory was 60.8MB in the beginning and 100.7MB in the end (delta: 39.8MB). Free memory was 30.3MB in the beginning and 61.7MB in the end (delta: -31.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB.
[2021-08-29 09:06:57,846 INFO  L158              Benchmark]: Witness Printer took 30.16ms. Allocated memory is still 100.7MB. Free memory was 61.7MB in the beginning and 57.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2021-08-29 09:06:57,847 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 146.00ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 29.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 64.69ms. Allocated memory is still 60.8MB. Free memory was 29.3MB in the beginning and 43.6MB in the end (delta: -14.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 29.94ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 237.96ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 30.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 2045.91ms. Allocated memory was 60.8MB in the beginning and 100.7MB in the end (delta: 39.8MB). Free memory was 30.3MB in the beginning and 61.7MB in the end (delta: -31.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB.
 * Witness Printer took 30.16ms. Allocated memory is still 100.7MB. Free memory was 61.7MB in the beginning and 57.5MB in the end (delta: 4.2MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 55]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L23]              struct cont cont;
[L24]              struct dummy dummy;
[L25]              struct dummy *dummies[10];
[L26]              int a[10];
[L27]              int i, *pa;
[L28]              i = __VERIFIER_nondet_int()
[L29]              int j = 0;
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND TRUE   j < 10
[L30]              a[j] = __VERIFIER_nondet_int()
[L34]              dummies[j] = 0
[L29]              j++
[L29]  COND FALSE  !(j < 10)
[L36]  COND TRUE   i >= 0 && i < 9
[L37]              a[i] = i
[L38]              dummy.array = &a[i]
[L39]              dummies[i + 1] = &dummy
[L40]              cont.array = &dummies[0]
[L41]  EXPR        cont.array
[L41]  EXPR        cont.array[i]
[L41]  EXPR        cont.array[i]->array
[L41]              pa = &cont.array[i]->array[i]
[L42]  EXPR        a[i]
[L42]  COND TRUE   a[i] > 0
[L43]  EXPR        dummies[i + 1]
[L43]  EXPR        dummies[i + 1]->array
[L43]  EXPR        dummies[i + 1]->array[i]
[L43]              i =  dummies[i + 1]->array[i] - 10
[L44]  EXPR        \read(*pa)
[L44]  COND FALSE  !(i < *pa)
[L18]  EXPR        pc->array
[L18]  EXPR        pc->array[i]
[L18]  EXPR        pc->array[i]->array
[L18]  EXPR        pc->array[i]->array[i]
[L18]              return pc->array[i]->array[i] == i;
[L47]  COND TRUE   !check(&cont, i)
[L55]              reach_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1987.92ms, OverallIterations: 4, TraceHistogramMax: 10, EmptinessCheckTime: 8.17ms, AutomataDifference: 252.41ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.84ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 158.77ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 130.34ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 0 mSDtfsCounter, 152 mSolverCounterSat, 2.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 71.01ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 26.04ms AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 40.28ms SsaConstructionTime, 461.17ms SatisfiabilityAnalysisTime, 409.56ms InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/51 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!
[2021-08-29 09:06:57,874 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...