/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test10.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:07:46,134 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:07:46,139 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:07:46,166 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:07:46,167 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:07:46,168 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:07:46,169 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:07:46,171 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:07:46,173 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:07:46,174 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:07:46,175 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:07:46,176 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:07:46,177 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:07:46,178 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:07:46,179 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:07:46,181 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:07:46,182 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:07:46,183 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:07:46,185 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:07:46,187 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:07:46,189 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:07:46,190 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:07:46,191 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:07:46,192 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:07:46,195 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:07:46,196 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:07:46,196 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:07:46,197 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:07:46,198 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:07:46,199 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:07:46,199 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:07:46,200 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:07:46,201 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:07:46,202 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:07:46,203 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:07:46,203 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:07:46,204 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:07:46,204 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:07:46,205 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:07:46,206 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:07:46,206 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:07:46,207 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 17:07:46,249 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 17:07:46,249 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:07:46,252 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:07:46,252 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 17:07:46,252 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 17:07:46,252 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:07:46,253 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 17:07:46,253 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 17:07:46,253 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 17:07:46,254 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 17:07:46,255 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:07:46,255 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:07:46,255 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:07:46,256 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 17:07:46,257 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 17:07:46,257 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 17:07:46,257 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:07:46,258 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:07:46,258 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 17:07:46,258 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 17:07:46,258 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 17:07:46,259 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:07:46,259 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:07:46,259 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:07:46,259 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:07:46,259 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 17:07:46,260 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:07:46,260 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:07:46,260 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 17:07:46,260 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 17:07:46,747 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:07:46,776 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:07:46,781 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:07:46,783 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 17:07:46,784 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 17:07:46,785 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test10.c
[2020-09-24 17:07:46,868 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809c3dbd8/14e9c2c40f2645c9a50f5954b9debb79/FLAGabfcd47df
[2020-09-24 17:07:47,420 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 17:07:47,421 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test10.c
[2020-09-24 17:07:47,432 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809c3dbd8/14e9c2c40f2645c9a50f5954b9debb79/FLAGabfcd47df
[2020-09-24 17:07:47,795 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809c3dbd8/14e9c2c40f2645c9a50f5954b9debb79
[2020-09-24 17:07:47,812 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:07:47,819 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:07:47,820 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:07:47,820 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:07:47,825 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:07:47,826 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:07:47" (1/1) ...
[2020-09-24 17:07:47,830 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6752e30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:47, skipping insertion in model container
[2020-09-24 17:07:47,831 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:07:47" (1/1) ...
[2020-09-24 17:07:47,840 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 17:07:47,871 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:07:48,086 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:07:48,102 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 17:07:48,121 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:07:48,141 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 17:07:48,142 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48 WrapperNode
[2020-09-24 17:07:48,142 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:07:48,143 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:07:48,143 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:07:48,143 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:07:48,235 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
[2020-09-24 17:07:48,236 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
[2020-09-24 17:07:48,250 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
[2020-09-24 17:07:48,250 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
[2020-09-24 17:07:48,264 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
[2020-09-24 17:07:48,267 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
[2020-09-24 17:07:48,269 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
[2020-09-24 17:07:48,272 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:07:48,272 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:07:48,273 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:07:48,273 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:07:48,274 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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
[2020-09-24 17:07:48,362 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:07:48,362 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:07:48,362 INFO  L138     BoogieDeclarations]: Found implementation of procedure f
[2020-09-24 17:07:48,362 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:07:48,363 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:07:48,363 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 17:07:48,363 INFO  L130     BoogieDeclarations]: Found specification of procedure f
[2020-09-24 17:07:48,363 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 17:07:48,363 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 17:07:48,363 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:07:48,364 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 17:07:48,364 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 17:07:48,364 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:07:48,364 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 17:07:48,364 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 17:07:48,365 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2020-09-24 17:07:48,365 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:07:48,365 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 17:07:48,799 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:07:48,799 INFO  L295             CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 17:07:48,805 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:07:48 BoogieIcfgContainer
[2020-09-24 17:07:48,805 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:07:48,806 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:07:48,807 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:07:48,815 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:07:48,815 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:07:47" (1/3) ...
[2020-09-24 17:07:48,816 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2f33a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:07:48, skipping insertion in model container
[2020-09-24 17:07:48,817 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (2/3) ...
[2020-09-24 17:07:48,817 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2f33a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:07:48, skipping insertion in model container
[2020-09-24 17:07:48,817 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:07:48" (3/3) ...
[2020-09-24 17:07:48,819 INFO  L109   eAbstractionObserver]: Analyzing ICFG test10.c
[2020-09-24 17:07:48,829 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:07:48,837 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:07:48,856 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:07:48,883 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:07:48,883 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 17:07:48,884 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:07:48,884 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:07:48,884 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:07:48,884 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 17:07:48,884 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:07:48,884 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:07:48,906 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states.
[2020-09-24 17:07:48,915 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-09-24 17:07:48,915 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 17:07:48,917 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:07:48,917 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:07:48,924 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:07:48,925 INFO  L82        PathProgramCache]: Analyzing trace with hash -424687121, now seen corresponding path program 1 times
[2020-09-24 17:07:48,936 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:07:48,936 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696054041]
[2020-09-24 17:07:48,937 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:07:49,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:07:49,458 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:07:53,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:07:53,867 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:07:53,868 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 69
[2020-09-24 17:07:53,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 17:07:53,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4554
[2020-09-24 17:07:53,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:07:53,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-09-24 17:07:53,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-24 17:07:53,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-09-24 17:07:53,872 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:07:54,600 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:07:54,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:07:54,626 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:07:54,745 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:07:54,745 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 17:07:54,746 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:07:54,746 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 129
[2020-09-24 17:07:54,747 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:07:54,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 17:07:54,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:07:54,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 17:07:54,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:07:54,983 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2020-09-24 17:07:54,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:07:54,998 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:07:55,062 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:07:55,063 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 17:07:55,063 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:07:55,063 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 70
[2020-09-24 17:07:55,063 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:07:55,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 17:07:55,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 17:07:55,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 17:07:55,064 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:07:55,280 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:07:55,281 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696054041]
[2020-09-24 17:07:55,283 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:07:55,284 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22
[2020-09-24 17:07:55,285 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799031053]
[2020-09-24 17:07:55,292 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 22 states
[2020-09-24 17:07:55,292 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:07:55,313 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2020-09-24 17:07:55,315 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462
[2020-09-24 17:07:55,318 INFO  L87              Difference]: Start difference. First operand 73 states. Second operand 22 states.
[2020-09-24 17:07:56,692 WARN  L193               SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91
[2020-09-24 17:07:57,070 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99
[2020-09-24 17:07:57,430 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102
[2020-09-24 17:07:57,601 WARN  L193               SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68
[2020-09-24 17:07:58,004 WARN  L193               SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59
[2020-09-24 17:07:58,144 WARN  L193               SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64
[2020-09-24 17:07:58,298 WARN  L193               SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66
[2020-09-24 17:07:58,433 WARN  L193               SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68
[2020-09-24 17:07:58,603 WARN  L193               SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63
[2020-09-24 17:07:58,760 WARN  L193               SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61
[2020-09-24 17:07:58,914 WARN  L193               SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61
[2020-09-24 17:07:58,964 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:07:58,965 INFO  L93              Difference]: Finished difference Result 89 states and 90 transitions.
[2020-09-24 17:07:58,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2020-09-24 17:07:58,973 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states. Word has length 60
[2020-09-24 17:07:58,974 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:07:58,985 INFO  L225             Difference]: With dead ends: 89
[2020-09-24 17:07:58,985 INFO  L226             Difference]: Without dead ends: 63
[2020-09-24 17:07:58,989 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980
[2020-09-24 17:07:59,008 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2020-09-24 17:07:59,031 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63.
[2020-09-24 17:07:59,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 63 states.
[2020-09-24 17:07:59,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 62 transitions.
[2020-09-24 17:07:59,036 INFO  L78                 Accepts]: Start accepts. Automaton has 63 states and 62 transitions. Word has length 60
[2020-09-24 17:07:59,037 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:07:59,037 INFO  L479      AbstractCegarLoop]: Abstraction has 63 states and 62 transitions.
[2020-09-24 17:07:59,037 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 22 states.
[2020-09-24 17:07:59,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions.
[2020-09-24 17:07:59,039 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-09-24 17:07:59,039 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 17:07:59,039 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:07:59,039 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:07:59,040 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:07:59,040 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:07:59,040 INFO  L82        PathProgramCache]: Analyzing trace with hash 251788018, now seen corresponding path program 1 times
[2020-09-24 17:07:59,041 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:07:59,041 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623590786]
[2020-09-24 17:07:59,041 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:07:59,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:07:59,118 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:08:00,643 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:08:03,061 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:08:08,653 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:08:08,653 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 17:08:08,654 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 17:08:08,663 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9570
[2020-09-24 17:08:08,663 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:08:08,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-09-24 17:08:08,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-24 17:08:08,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-09-24 17:08:08,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:08:09,383 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:08:09,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:08:09,406 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:08:09,503 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:08:09,504 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 17:08:09,504 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:08:09,504 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 106
[2020-09-24 17:08:09,504 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:08:09,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 17:08:09,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:08:09,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 17:08:09,505 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:08:09,700 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2020-09-24 17:08:09,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:08:09,714 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:08:09,773 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:08:09,774 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 17:08:09,774 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:08:09,774 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 17:08:09,774 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:08:09,774 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 17:08:09,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 17:08:09,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 17:08:09,775 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:08:10,164 WARN  L193               SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37
[2020-09-24 17:08:10,197 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:08:10,197 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623590786]
[2020-09-24 17:08:10,198 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:08:10,198 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24
[2020-09-24 17:08:10,198 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213631939]
[2020-09-24 17:08:10,200 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 24 states
[2020-09-24 17:08:10,201 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:08:10,201 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2020-09-24 17:08:10,202 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552
[2020-09-24 17:08:10,202 INFO  L87              Difference]: Start difference. First operand 63 states and 62 transitions. Second operand 24 states.
[2020-09-24 17:08:11,893 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63
[2020-09-24 17:08:13,145 WARN  L193               SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 73
[2020-09-24 17:08:13,169 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:08:13,170 INFO  L93              Difference]: Finished difference Result 63 states and 62 transitions.
[2020-09-24 17:08:13,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2020-09-24 17:08:13,170 INFO  L78                 Accepts]: Start accepts. Automaton has 24 states. Word has length 62
[2020-09-24 17:08:13,171 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:08:13,171 INFO  L225             Difference]: With dead ends: 63
[2020-09-24 17:08:13,172 INFO  L226             Difference]: Without dead ends: 0
[2020-09-24 17:08:13,174 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=384, Invalid=1778, Unknown=0, NotChecked=0, Total=2162
[2020-09-24 17:08:13,174 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 17:08:13,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 17:08:13,175 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 17:08:13,175 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 17:08:13,175 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62
[2020-09-24 17:08:13,175 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:08:13,175 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 17:08:13,175 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 24 states.
[2020-09-24 17:08:13,175 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 17:08:13,175 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 17:08:13,176 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:08:13,178 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 17:08:13,372 WARN  L193               SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114
[2020-09-24 17:08:13,528 WARN  L193               SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44
[2020-09-24 17:08:13,853 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 74
[2020-09-24 17:08:13,964 WARN  L193               SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57
[2020-09-24 17:08:13,985 INFO  L268        CegarLoopResult]: For program point  L5-4(line 5)  no Hoare annotation was computed.
[2020-09-24 17:08:13,985 INFO  L268        CegarLoopResult]: For program point  L-1(line -1)  no Hoare annotation was computed.
[2020-09-24 17:08:13,986 INFO  L268        CegarLoopResult]: For program point  L-1-1(line -1)  no Hoare annotation was computed.
[2020-09-24 17:08:13,986 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-09-24 17:08:13,986 INFO  L264        CegarLoopResult]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (= |~#p1~0.base| |old(~#p1~0.base)|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(#length)| |#length|) (= ~pp2~0.base |old(~pp2~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |old(~pp1~0.base)| ~pp1~0.base) (= |old(~#a~0.base)| |~#a~0.base|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |old(~#p2~0.base)| |~#p2~0.base|) (= |old(~#p2~0.offset)| |~#p2~0.offset|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |old(~pp1~0.offset)| ~pp1~0.offset) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#p1~0.offset| |old(~#p1~0.offset)|))
[2020-09-24 17:08:13,986 INFO  L268        CegarLoopResult]: For program point  L7(line 7)  no Hoare annotation was computed.
[2020-09-24 17:08:13,987 INFO  L268        CegarLoopResult]: For program point  L6(line 6)  no Hoare annotation was computed.
[2020-09-24 17:08:13,987 INFO  L268        CegarLoopResult]: For program point  L5(line 5)  no Hoare annotation was computed.
[2020-09-24 17:08:13,987 INFO  L268        CegarLoopResult]: For program point  L6-1(line 6)  no Hoare annotation was computed.
[2020-09-24 17:08:13,987 INFO  L268        CegarLoopResult]: For program point  L5-1(line 5)  no Hoare annotation was computed.
[2020-09-24 17:08:13,987 INFO  L268        CegarLoopResult]: For program point  L6-2(line 6)  no Hoare annotation was computed.
[2020-09-24 17:08:13,987 INFO  L268        CegarLoopResult]: For program point  L5-2(line 5)  no Hoare annotation was computed.
[2020-09-24 17:08:13,988 INFO  L268        CegarLoopResult]: For program point  L6-3(line 6)  no Hoare annotation was computed.
[2020-09-24 17:08:13,988 INFO  L268        CegarLoopResult]: For program point  L5-3(line 5)  no Hoare annotation was computed.
[2020-09-24 17:08:13,988 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-09-24 17:08:13,988 INFO  L268        CegarLoopResult]: For program point  L13(line 13)  no Hoare annotation was computed.
[2020-09-24 17:08:13,988 INFO  L268        CegarLoopResult]: For program point  L12(line 12)  no Hoare annotation was computed.
[2020-09-24 17:08:13,988 INFO  L268        CegarLoopResult]: For program point  L11(line 11)  no Hoare annotation was computed.
[2020-09-24 17:08:13,989 INFO  L268        CegarLoopResult]: For program point  L10(line 10)  no Hoare annotation was computed.
[2020-09-24 17:08:13,989 INFO  L268        CegarLoopResult]: For program point  L11-1(line 11)  no Hoare annotation was computed.
[2020-09-24 17:08:13,989 INFO  L268        CegarLoopResult]: For program point  L10-1(line 10)  no Hoare annotation was computed.
[2020-09-24 17:08:13,989 INFO  L268        CegarLoopResult]: For program point  L11-2(line 11)  no Hoare annotation was computed.
[2020-09-24 17:08:13,989 INFO  L268        CegarLoopResult]: For program point  fEXIT(lines 9 14)  no Hoare annotation was computed.
[2020-09-24 17:08:13,990 INFO  L264        CegarLoopResult]: At program point  fENTRY(lines 9 14)  the Hoare annotation is:  (or (not (= |~#p1~0.offset| ~pp1~0.offset)) (= |~#b~0.base| |old(~pp2~0.base)|) (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |#memory_int| |old(#memory_int)|) (= ~pp2~0.base |old(~pp2~0.base)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|))) (= |~#p1~0.base| |~#p2~0.base|) (= |~#a~0.base| |old(~pp2~0.base)|) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p2~0.base|) |~#p2~0.offset|) |~#b~0.offset|)) (not (= |~#p1~0.base| ~pp1~0.base)) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (not (= (select (select |old(#memory_$Pointer$.base)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select |old(#memory_$Pointer$.offset)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|) |~#b~0.offset|)) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |~#p2~0.base|) |~#p2~0.offset|))) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|)) (= |~#b~0.base| |~#p1~0.base|))
[2020-09-24 17:08:13,990 INFO  L268        CegarLoopResult]: For program point  fFINAL(lines 9 14)  no Hoare annotation was computed.
[2020-09-24 17:08:13,990 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-09-24 17:08:13,990 INFO  L264        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  (and (not (= |~#b~0.base| |~#p1~0.base|)) (= (select |#valid| |~#a~0.base|) 1) (not (= |~#p1~0.base| |~#p2~0.base|)) (= (select |#valid| |~#b~0.base|) 1) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#p2~0.base|)) (not (= (select |#valid| |~#p1~0.base|) 0)) (not (= |~#b~0.base| |~#a~0.base|)) (not (= |~#p1~0.base| |~#a~0.base|)))
[2020-09-24 17:08:13,991 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-09-24 17:08:13,991 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-09-24 17:08:13,991 INFO  L264        CegarLoopResult]: At program point  L31(line 31)  the Hoare annotation is:  (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#p1~0.base| |~#p2~0.base|) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (and (= |~#b~0.base| (select (select |#memory_$Pointer$.base| |~#p2~0.base|) |~#p2~0.offset|)) (not (= |~#b~0.base| ~pp2~0.base)) (= (select (select |#memory_$Pointer$.offset| ~pp2~0.base) ~pp2~0.offset) |~#b~0.offset|) (= (select (select |#memory_$Pointer$.offset| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|) (not (= ~pp2~0.base |~#a~0.base|)) (= |~#p1~0.offset| ~pp1~0.offset) (= |~#p1~0.base| ~pp1~0.base) (= |~#b~0.base| (select (select |#memory_$Pointer$.base| ~pp2~0.base) ~pp2~0.offset)) (= (select (select |#memory_$Pointer$.offset| |~#p2~0.base|) |~#p2~0.offset|) |~#b~0.offset|) (= (select (select |#memory_$Pointer$.base| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p1~0.base|))
[2020-09-24 17:08:13,991 INFO  L268        CegarLoopResult]: For program point  L31-1(line 31)  no Hoare annotation was computed.
[2020-09-24 17:08:13,991 INFO  L268        CegarLoopResult]: For program point  L31-2(line 31)  no Hoare annotation was computed.
[2020-09-24 17:08:13,992 INFO  L268        CegarLoopResult]: For program point  L31-3(line 31)  no Hoare annotation was computed.
[2020-09-24 17:08:13,992 INFO  L268        CegarLoopResult]: For program point  L27(line 27)  no Hoare annotation was computed.
[2020-09-24 17:08:13,992 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 16 49)  no Hoare annotation was computed.
[2020-09-24 17:08:13,992 INFO  L268        CegarLoopResult]: For program point  L48(line 48)  no Hoare annotation was computed.
[2020-09-24 17:08:13,992 INFO  L268        CegarLoopResult]: For program point  L36(line 36)  no Hoare annotation was computed.
[2020-09-24 17:08:13,992 INFO  L268        CegarLoopResult]: For program point  L36-1(line 36)  no Hoare annotation was computed.
[2020-09-24 17:08:13,992 INFO  L268        CegarLoopResult]: For program point  L24(line 24)  no Hoare annotation was computed.
[2020-09-24 17:08:13,993 INFO  L268        CegarLoopResult]: For program point  L20(line 20)  no Hoare annotation was computed.
[2020-09-24 17:08:13,993 INFO  L268        CegarLoopResult]: For program point  L20-1(line 20)  no Hoare annotation was computed.
[2020-09-24 17:08:13,993 INFO  L268        CegarLoopResult]: For program point  L45(line 45)  no Hoare annotation was computed.
[2020-09-24 17:08:13,993 INFO  L268        CegarLoopResult]: For program point  L41(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,993 INFO  L268        CegarLoopResult]: For program point  L41-1(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,993 INFO  L268        CegarLoopResult]: For program point  L41-2(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,994 INFO  L268        CegarLoopResult]: For program point  L41-4(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,994 INFO  L268        CegarLoopResult]: For program point  L41-5(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,994 INFO  L268        CegarLoopResult]: For program point  L41-6(lines 41 43)  no Hoare annotation was computed.
[2020-09-24 17:08:13,994 INFO  L268        CegarLoopResult]: For program point  L41-7(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,994 INFO  L268        CegarLoopResult]: For program point  L33(line 33)  no Hoare annotation was computed.
[2020-09-24 17:08:13,994 INFO  L268        CegarLoopResult]: For program point  L41-8(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,995 INFO  L268        CegarLoopResult]: For program point  L33-1(line 33)  no Hoare annotation was computed.
[2020-09-24 17:08:13,995 INFO  L268        CegarLoopResult]: For program point  L41-9(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,995 INFO  L268        CegarLoopResult]: For program point  L41-10(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,995 INFO  L268        CegarLoopResult]: For program point  L41-11(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,995 INFO  L268        CegarLoopResult]: For program point  L29(line 29)  no Hoare annotation was computed.
[2020-09-24 17:08:13,995 INFO  L268        CegarLoopResult]: For program point  L41-12(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,995 INFO  L268        CegarLoopResult]: For program point  L29-1(line 29)  no Hoare annotation was computed.
[2020-09-24 17:08:13,996 INFO  L268        CegarLoopResult]: For program point  L41-13(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,996 INFO  L268        CegarLoopResult]: For program point  L29-2(line 29)  no Hoare annotation was computed.
[2020-09-24 17:08:13,996 INFO  L268        CegarLoopResult]: For program point  L41-14(line 41)  no Hoare annotation was computed.
[2020-09-24 17:08:13,996 INFO  L268        CegarLoopResult]: For program point  L29-3(line 29)  no Hoare annotation was computed.
[2020-09-24 17:08:13,996 INFO  L268        CegarLoopResult]: For program point  L21(line 21)  no Hoare annotation was computed.
[2020-09-24 17:08:13,996 INFO  L268        CegarLoopResult]: For program point  mainFINAL(lines 16 49)  no Hoare annotation was computed.
[2020-09-24 17:08:13,997 INFO  L264        CegarLoopResult]: At program point  L42(lines 16 49)  the Hoare annotation is:  (or (= |~#p2~0.base| |~#b~0.base|) (= |~#p2~0.base| |~#p1~0.base|) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#a~0.base| |~#p1~0.base|) (= |~#p2~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#a~0.base| |~#b~0.base|) (= |~#p1~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)))
[2020-09-24 17:08:13,997 INFO  L268        CegarLoopResult]: For program point  L38(line 38)  no Hoare annotation was computed.
[2020-09-24 17:08:13,997 INFO  L268        CegarLoopResult]: For program point  L38-1(line 38)  no Hoare annotation was computed.
[2020-09-24 17:08:13,997 INFO  L268        CegarLoopResult]: For program point  L34(line 34)  no Hoare annotation was computed.
[2020-09-24 17:08:13,997 INFO  L268        CegarLoopResult]: For program point  mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47)  no Hoare annotation was computed.
[2020-09-24 17:08:13,998 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 16 49)  the Hoare annotation is:  (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#p1~0.base| |~#p2~0.base|) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p1~0.base|) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |#memory_int| |old(#memory_int)|) (= |old(~pp1~0.offset)| ~pp1~0.offset) (= ~pp2~0.base |old(~pp2~0.base)|) (= |old(~pp1~0.base)| ~pp1~0.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)))
[2020-09-24 17:08:13,998 INFO  L268        CegarLoopResult]: For program point  L26(line 26)  no Hoare annotation was computed.
[2020-09-24 17:08:13,998 INFO  L268        CegarLoopResult]: For program point  L26-1(line 26)  no Hoare annotation was computed.
[2020-09-24 17:08:13,998 INFO  L268        CegarLoopResult]: For program point  L39(line 39)  no Hoare annotation was computed.
[2020-09-24 17:08:14,023 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:08:14 BoogieIcfgContainer
[2020-09-24 17:08:14,023 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:08:14,026 INFO  L168              Benchmark]: Toolchain (without parser) took 26211.52 ms. Allocated memory was 140.0 MB in the beginning and 457.2 MB in the end (delta: 317.2 MB). Free memory was 102.3 MB in the beginning and 156.7 MB in the end (delta: -54.4 MB). Peak memory consumption was 262.8 MB. Max. memory is 7.1 GB.
[2020-09-24 17:08:14,027 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-09-24 17:08:14,028 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 322.49 ms. Allocated memory is still 140.0 MB. Free memory was 101.4 MB in the beginning and 91.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-09-24 17:08:14,029 INFO  L168              Benchmark]: Boogie Preprocessor took 129.15 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB.
[2020-09-24 17:08:14,030 INFO  L168              Benchmark]: RCFGBuilder took 532.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 157.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB.
[2020-09-24 17:08:14,031 INFO  L168              Benchmark]: TraceAbstraction took 25217.17 ms. Allocated memory was 202.4 MB in the beginning and 457.2 MB in the end (delta: 254.8 MB). Free memory was 156.1 MB in the beginning and 156.7 MB in the end (delta: -539.8 kB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB.
[2020-09-24 17:08:14,035 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 322.49 ms. Allocated memory is still 140.0 MB. Free memory was 101.4 MB in the beginning and 91.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 129.15 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 532.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 157.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 25217.17 ms. Allocated memory was 202.4 MB in the beginning and 457.2 MB in the end (delta: 254.8 MB). Free memory was 156.1 MB in the beginning and 156.7 MB in the end (delta: -539.8 kB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 47]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 16]: Loop Invariant
    Derived loop invariant: (((((((p2 == b || p2 == p1) || !(\valid[b] == 1)) || a == p1) || p2 == a) || \valid[p1] == 0) || a == b) || p1 == b) || !(\valid[a] == 1)
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 557 SDslu, 316 SDs, 0 SdLazy, 1090 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 392 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 301 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 170396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...