./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/skippedu.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 7b2dab56
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/skippedu.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC --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 188f1f6278f7b64d732f6e67466f6eb857ea2297
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 0.2.0-7b2dab5
[2021-10-11 00:26:14,175 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-11 00:26:14,177 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-11 00:26:14,206 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-11 00:26:14,206 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-11 00:26:14,208 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-11 00:26:14,210 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-11 00:26:14,212 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-11 00:26:14,214 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-11 00:26:14,215 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-11 00:26:14,216 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-11 00:26:14,218 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-11 00:26:14,218 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-11 00:26:14,219 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-11 00:26:14,221 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-11 00:26:14,222 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-11 00:26:14,223 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-11 00:26:14,224 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-11 00:26:14,226 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-11 00:26:14,228 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-11 00:26:14,230 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-11 00:26:14,234 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-11 00:26:14,235 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-11 00:26:14,237 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-11 00:26:14,242 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-11 00:26:14,246 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-11 00:26:14,246 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-11 00:26:14,248 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-11 00:26:14,252 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-11 00:26:14,253 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-11 00:26:14,254 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-11 00:26:14,255 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-11 00:26:14,256 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-11 00:26:14,257 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-11 00:26:14,259 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-11 00:26:14,259 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-11 00:26:14,260 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-11 00:26:14,260 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-11 00:26:14,261 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-11 00:26:14,261 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-11 00:26:14,262 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-11 00:26:14,264 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-11 00:26:14,305 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-11 00:26:14,305 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-11 00:26:14,307 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-11 00:26:14,307 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-11 00:26:14,307 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-11 00:26:14,307 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-11 00:26:14,308 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-11 00:26:14,308 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-11 00:26:14,308 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-11 00:26:14,314 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-11 00:26:14,315 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-11 00:26:14,315 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-11 00:26:14,316 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-11 00:26:14,316 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-11 00:26:14,316 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-11 00:26:14,316 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-11 00:26:14,316 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-11 00:26:14,317 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-11 00:26:14,317 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-11 00:26:14,317 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-11 00:26:14,317 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:26:14,318 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-11 00:26:14,318 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-11 00:26:14,318 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-11 00:26:14,318 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-11 00:26:14,318 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-11 00:26:14,319 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-11 00:26:14,319 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-11 00:26:14,319 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC
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 -> 188f1f6278f7b64d732f6e67466f6eb857ea2297
[2021-10-11 00:26:14,594 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-11 00:26:14,623 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-11 00:26:14,626 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-11 00:26:14,627 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-11 00:26:14,632 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-11 00:26:14,633 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/array-tiling/skippedu.c
[2021-10-11 00:26:14,707 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/data/93115c8da/04df841e8c1a46d8a9878260bb9b9e37/FLAGee901e797
[2021-10-11 00:26:15,158 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-11 00:26:15,159 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/sv-benchmarks/c/array-tiling/skippedu.c
[2021-10-11 00:26:15,170 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/data/93115c8da/04df841e8c1a46d8a9878260bb9b9e37/FLAGee901e797
[2021-10-11 00:26:15,532 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/data/93115c8da/04df841e8c1a46d8a9878260bb9b9e37
[2021-10-11 00:26:15,534 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-11 00:26:15,536 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-11 00:26:15,550 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-11 00:26:15,551 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-11 00:26:15,554 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-11 00:26:15,555 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,556 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59aac7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15, skipping insertion in model container
[2021-10-11 00:26:15,557 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,568 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-11 00:26:15,583 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-11 00:26:15,760 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/sv-benchmarks/c/array-tiling/skippedu.c[399,412]
[2021-10-11 00:26:15,776 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:26:15,784 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-11 00:26:15,796 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/sv-benchmarks/c/array-tiling/skippedu.c[399,412]
[2021-10-11 00:26:15,804 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:26:15,818 INFO  L208         MainTranslator]: Completed translation
[2021-10-11 00:26:15,818 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15 WrapperNode
[2021-10-11 00:26:15,818 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-11 00:26:15,820 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-11 00:26:15,820 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-11 00:26:15,820 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-11 00:26:15,827 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,834 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,853 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-11 00:26:15,854 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-11 00:26:15,854 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-11 00:26:15,854 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-11 00:26:15,862 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,863 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,865 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,865 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,870 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,874 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,875 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
[2021-10-11 00:26:15,877 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-11 00:26:15,878 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-11 00:26:15,878 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-11 00:26:15,878 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-11 00:26:15,883 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (1/1) ...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:26:15,972 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-11 00:26:15,972 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-11 00:26:15,974 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-10-11 00:26:15,974 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-10-11 00:26:15,975 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-11 00:26:15,975 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-11 00:26:15,975 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-10-11 00:26:16,380 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-11 00:26:16,380 INFO  L299             CfgBuilder]: Removed 11 assume(true) statements.
[2021-10-11 00:26:16,382 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:16 BoogieIcfgContainer
[2021-10-11 00:26:16,382 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-11 00:26:16,383 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-11 00:26:16,383 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-11 00:26:16,387 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-11 00:26:16,387 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:26:15" (1/3) ...
[2021-10-11 00:26:16,388 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf76f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:16, skipping insertion in model container
[2021-10-11 00:26:16,388 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:15" (2/3) ...
[2021-10-11 00:26:16,389 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf76f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:16, skipping insertion in model container
[2021-10-11 00:26:16,389 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:16" (3/3) ...
[2021-10-11 00:26:16,390 INFO  L111   eAbstractionObserver]: Analyzing ICFG skippedu.c
[2021-10-11 00:26:16,403 INFO  L180   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-11 00:26:16,406 INFO  L192   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-10-11 00:26:16,417 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-11 00:26:16,439 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2021-10-11 00:26:16,439 INFO  L378      AbstractCegarLoop]: Hoare is true
[2021-10-11 00:26:16,439 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-10-11 00:26:16,439 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-11 00:26:16,440 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-11 00:26:16,440 INFO  L382      AbstractCegarLoop]: Difference is false
[2021-10-11 00:26:16,440 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-11 00:26:16,440 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-10-11 00:26:16,452 INFO  L276                IsEmpty]: Start isEmpty. Operand 24 states.
[2021-10-11 00:26:16,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-10-11 00:26:16,457 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:26:16,458 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:26:16,459 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:26:16,463 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:26:16,464 INFO  L82        PathProgramCache]: Analyzing trace with hash -1607783550, now seen corresponding path program 1 times
[2021-10-11 00:26:16,473 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:26:16,473 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005201732]
[2021-10-11 00:26:16,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:26:16,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:26:16,660 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:26:16,661 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005201732]
[2021-10-11 00:26:16,662 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:26:16,662 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-11 00:26:16,663 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110332834]
[2021-10-11 00:26:16,667 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 2 states
[2021-10-11 00:26:16,668 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:26:16,684 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-11 00:26:16,685 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-11 00:26:16,688 INFO  L87              Difference]: Start difference. First operand 24 states. Second operand 2 states.
[2021-10-11 00:26:16,705 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:26:16,706 INFO  L93              Difference]: Finished difference Result 43 states and 62 transitions.
[2021-10-11 00:26:16,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-11 00:26:16,708 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 12
[2021-10-11 00:26:16,708 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:26:16,725 INFO  L225             Difference]: With dead ends: 43
[2021-10-11 00:26:16,728 INFO  L226             Difference]: Without dead ends: 20
[2021-10-11 00:26:16,731 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-11 00:26:16,748 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2021-10-11 00:26:16,762 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2021-10-11 00:26:16,763 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2021-10-11 00:26:16,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions.
[2021-10-11 00:26:16,767 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 12
[2021-10-11 00:26:16,767 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:26:16,767 INFO  L481      AbstractCegarLoop]: Abstraction has 20 states and 24 transitions.
[2021-10-11 00:26:16,767 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2021-10-11 00:26:16,768 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions.
[2021-10-11 00:26:16,768 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-10-11 00:26:16,768 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:26:16,769 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:26:16,769 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-11 00:26:16,770 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:26:16,773 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:26:16,773 INFO  L82        PathProgramCache]: Analyzing trace with hash -1872951298, now seen corresponding path program 1 times
[2021-10-11 00:26:16,774 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:26:16,774 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107309781]
[2021-10-11 00:26:16,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:26:16,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:26:16,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:26:16,921 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107309781]
[2021-10-11 00:26:16,921 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:26:16,922 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-11 00:26:16,922 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775732591]
[2021-10-11 00:26:16,925 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:26:16,927 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:26:16,930 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:26:16,931 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:26:16,931 INFO  L87              Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 3 states.
[2021-10-11 00:26:17,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:26:17,033 INFO  L93              Difference]: Finished difference Result 37 states and 45 transitions.
[2021-10-11 00:26:17,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:26:17,035 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 12
[2021-10-11 00:26:17,035 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:26:17,037 INFO  L225             Difference]: With dead ends: 37
[2021-10-11 00:26:17,037 INFO  L226             Difference]: Without dead ends: 22
[2021-10-11 00:26:17,037 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:26:17,038 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2021-10-11 00:26:17,040 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2021-10-11 00:26:17,041 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2021-10-11 00:26:17,041 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions.
[2021-10-11 00:26:17,041 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12
[2021-10-11 00:26:17,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:26:17,042 INFO  L481      AbstractCegarLoop]: Abstraction has 21 states and 25 transitions.
[2021-10-11 00:26:17,042 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:26:17,042 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions.
[2021-10-11 00:26:17,043 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-10-11 00:26:17,043 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:26:17,043 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:26:17,043 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-11 00:26:17,044 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:26:17,044 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:26:17,044 INFO  L82        PathProgramCache]: Analyzing trace with hash -270152420, now seen corresponding path program 1 times
[2021-10-11 00:26:17,045 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:26:17,045 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100501259]
[2021-10-11 00:26:17,045 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:26:17,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:26:17,125 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:26:17,126 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100501259]
[2021-10-11 00:26:17,126 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030358485]
[2021-10-11 00:26:17,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:26:17,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:26:17,211 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-11 00:26:17,215 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:26:17,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:26:17,300 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:26:17,300 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2021-10-11 00:26:17,300 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723965784]
[2021-10-11 00:26:17,301 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-10-11 00:26:17,301 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:26:17,301 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-11 00:26:17,302 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-11 00:26:17,302 INFO  L87              Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 6 states.
[2021-10-11 00:26:17,365 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:26:17,366 INFO  L93              Difference]: Finished difference Result 39 states and 47 transitions.
[2021-10-11 00:26:17,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-10-11 00:26:17,366 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 14
[2021-10-11 00:26:17,367 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:26:17,367 INFO  L225             Difference]: With dead ends: 39
[2021-10-11 00:26:17,367 INFO  L226             Difference]: Without dead ends: 24
[2021-10-11 00:26:17,368 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-11 00:26:17,369 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2021-10-11 00:26:17,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23.
[2021-10-11 00:26:17,372 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2021-10-11 00:26:17,372 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2021-10-11 00:26:17,373 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 14
[2021-10-11 00:26:17,373 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:26:17,373 INFO  L481      AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2021-10-11 00:26:17,373 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2021-10-11 00:26:17,373 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2021-10-11 00:26:17,374 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-11 00:26:17,374 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:26:17,374 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:26:17,594 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2021-10-11 00:26:17,595 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:26:17,595 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:26:17,595 INFO  L82        PathProgramCache]: Analyzing trace with hash -1873689926, now seen corresponding path program 2 times
[2021-10-11 00:26:17,595 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:26:17,596 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556204923]
[2021-10-11 00:26:17,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:26:17,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:26:17,800 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-11 00:26:17,800 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556204923]
[2021-10-11 00:26:17,801 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:26:17,801 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-11 00:26:17,801 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22937381]
[2021-10-11 00:26:17,802 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-10-11 00:26:17,802 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:26:17,802 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-11 00:26:17,803 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:26:17,803 INFO  L87              Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states.
[2021-10-11 00:26:17,859 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:26:17,859 INFO  L93              Difference]: Finished difference Result 35 states and 42 transitions.
[2021-10-11 00:26:17,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-10-11 00:26:17,859 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 16
[2021-10-11 00:26:17,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:26:17,860 INFO  L225             Difference]: With dead ends: 35
[2021-10-11 00:26:17,861 INFO  L226             Difference]: Without dead ends: 28
[2021-10-11 00:26:17,861 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:26:17,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2021-10-11 00:26:17,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24.
[2021-10-11 00:26:17,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2021-10-11 00:26:17,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions.
[2021-10-11 00:26:17,866 INFO  L78                 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 16
[2021-10-11 00:26:17,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:26:17,866 INFO  L481      AbstractCegarLoop]: Abstraction has 24 states and 28 transitions.
[2021-10-11 00:26:17,866 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2021-10-11 00:26:17,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions.
[2021-10-11 00:26:17,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-10-11 00:26:17,867 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:26:17,868 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:26:17,868 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-11 00:26:17,868 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:26:17,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:26:17,869 INFO  L82        PathProgramCache]: Analyzing trace with hash -1095507628, now seen corresponding path program 1 times
[2021-10-11 00:26:17,869 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:26:17,869 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375725107]
[2021-10-11 00:26:17,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:26:17,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:26:18,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-11 00:26:18,071 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375725107]
[2021-10-11 00:26:18,071 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393529099]
[2021-10-11 00:26:18,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:26:18,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:26:18,151 INFO  L263         TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core
[2021-10-11 00:26:18,155 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:26:18,269 INFO  L382             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16
[2021-10-11 00:26:18,271 INFO  L547         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-10-11 00:26:18,277 INFO  L625         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:26:18,280 INFO  L547         ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2021-10-11 00:26:18,281 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20
[2021-10-11 00:26:18,327 INFO  L348             Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2021-10-11 00:26:18,328 INFO  L382             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20
[2021-10-11 00:26:18,332 INFO  L547         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-10-11 00:26:18,338 INFO  L625         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:26:18,339 INFO  L547         ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2021-10-11 00:26:18,340 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17
[2021-10-11 00:26:18,429 INFO  L639       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:26:18,434 INFO  L639       QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2021-10-11 00:26:18,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-11 00:26:18,454 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:26:18,454 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2021-10-11 00:26:18,454 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027328319]
[2021-10-11 00:26:18,455 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 14 states
[2021-10-11 00:26:18,455 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:26:18,455 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-10-11 00:26:18,459 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182
[2021-10-11 00:26:18,459 INFO  L87              Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 14 states.
[2021-10-11 00:26:19,281 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:26:19,281 INFO  L93              Difference]: Finished difference Result 78 states and 93 transitions.
[2021-10-11 00:26:19,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2021-10-11 00:26:19,282 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 21
[2021-10-11 00:26:19,282 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:26:19,285 INFO  L225             Difference]: With dead ends: 78
[2021-10-11 00:26:19,285 INFO  L226             Difference]: Without dead ends: 76
[2021-10-11 00:26:19,287 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930
[2021-10-11 00:26:19,288 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2021-10-11 00:26:19,304 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 45.
[2021-10-11 00:26:19,304 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2021-10-11 00:26:19,308 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions.
[2021-10-11 00:26:19,308 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 21
[2021-10-11 00:26:19,308 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:26:19,308 INFO  L481      AbstractCegarLoop]: Abstraction has 45 states and 57 transitions.
[2021-10-11 00:26:19,308 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2021-10-11 00:26:19,309 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions.
[2021-10-11 00:26:19,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-10-11 00:26:19,309 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:26:19,310 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:26:19,534 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:26:19,535 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:26:19,535 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:26:19,535 INFO  L82        PathProgramCache]: Analyzing trace with hash -415449258, now seen corresponding path program 1 times
[2021-10-11 00:26:19,535 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:26:19,535 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943263971]
[2021-10-11 00:26:19,536 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:26:19,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:26:19,557 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:26:19,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:26:19,614 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:26:19,637 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-11 00:26:19,637 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2021-10-11 00:26:19,637 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-11 00:26:19,673 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:26:19 BoogieIcfgContainer
[2021-10-11 00:26:19,678 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-11 00:26:19,679 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-11 00:26:19,679 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-11 00:26:19,679 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-11 00:26:19,679 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:16" (3/4) ...
[2021-10-11 00:26:19,681 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-11 00:26:19,775 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbf96e7-b3be-4f04-9f23-c757936adf08/bin/uautomizer-Z5i5R5N3CC/witness.graphml
[2021-10-11 00:26:19,782 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-11 00:26:19,783 INFO  L168              Benchmark]: Toolchain (without parser) took 4247.04 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 63.1 MB in the beginning and 87.8 MB in the end (delta: -24.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,784 INFO  L168              Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 100.7 MB. Free memory was 79.2 MB in the beginning and 79.2 MB in the end (delta: 59.9 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,785 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 268.38 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 76.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,788 INFO  L168              Benchmark]: Boogie Procedure Inliner took 33.72 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 74.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,789 INFO  L168              Benchmark]: Boogie Preprocessor took 23.47 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,790 INFO  L168              Benchmark]: RCFGBuilder took 503.86 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 57.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,790 INFO  L168              Benchmark]: TraceAbstraction took 3294.83 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 57.3 MB in the beginning and 90.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,792 INFO  L168              Benchmark]: Witness Printer took 103.54 ms. Allocated memory is still 138.4 MB. Free memory was 90.9 MB in the beginning and 87.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:26:19,794 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.71 ms. Allocated memory is still 100.7 MB. Free memory was 79.2 MB in the beginning and 79.2 MB in the end (delta: 59.9 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 268.38 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 76.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 33.72 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 74.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 23.47 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 503.86 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 57.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 3294.83 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 57.3 MB in the beginning and 90.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB.
 * Witness Printer took 103.54 ms. Allocated memory is still 138.4 MB. Free memory was 90.9 MB in the beginning and 87.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 8]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L12]              int SIZE;
[L14]              const int MAX = 100000;
       VAL         [MAX=100000, SIZE=0]
[L18]              SIZE = __VERIFIER_nondet_int()
[L19]  COND TRUE   SIZE > 1 && SIZE < MAX
[L21]              int i;
[L22]              int *a = malloc(sizeof(int)*SIZE);
[L24]              i = 0
       VAL         [MAX=100000, SIZE=2]
[L24]  COND TRUE   i < SIZE
[L26]              a[i] = __VERIFIER_nondet_int()
[L24]              i++
       VAL         [MAX=100000, SIZE=2]
[L24]  COND TRUE   i < SIZE
[L26]              a[i] = __VERIFIER_nondet_int()
[L24]              i++
       VAL         [MAX=100000, SIZE=2]
[L24]  COND FALSE  !(i < SIZE)
       VAL         [MAX=100000, SIZE=2]
[L29]  COND FALSE  !(SIZE % 2 != 0)
[L6]   COND FALSE  !(!cond)
       VAL         [MAX=100000, SIZE=2]
[L32]              i = 1
       VAL         [MAX=100000, SIZE=2]
[L32]  COND TRUE   i <= SIZE/2
[L34]  EXPR        a[2*i-2]
       VAL         [MAX=100000, SIZE=2]
[L34]  COND FALSE  !(a[2*i-2] > i)
[L38]  EXPR        a[2*i-1]
       VAL         [MAX=100000, SIZE=2]
[L38]  COND TRUE   a[2*i-1] > i
[L40]              a[2*i-1] = 2*i-1
       VAL         [MAX=100000, SIZE=2]
[L32]              i++
       VAL         [MAX=100000, SIZE=2]
[L32]  COND FALSE  !(i <= SIZE/2)
       VAL         [MAX=100000, SIZE=2]
[L44]              i = 0
       VAL         [MAX=100000, SIZE=2]
[L44]  COND TRUE   i < SIZE
[L46]              a[i]
[L8]   COND TRUE   !(cond)
       VAL         [MAX=100000, SIZE=2]
[L8]               reach_error()
       VAL         [MAX=100000, SIZE=2]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 SDtfs, 235 SDslu, 113 SDs, 0 SdLazy, 281 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 37 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 8488 SizeOfPredicates, 12 NumberOfNonLiveVariables, 185 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 12/16 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!
Received shutdown request...