/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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/test04.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:27:06,789 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:27:06,793 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:27:06,819 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:27:06,820 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:27:06,821 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:27:06,823 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:27:06,825 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:27:06,827 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:27:06,828 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-09-25 13:27:06,831 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:27:06,833 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:27:06,834 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:27:06,836 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:27:06,837 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:27:06,838 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:27:06,840 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:27:06,842 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:27:06,844 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:27:06,845 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:27:06,847 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:27:06,848 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:27:06,850 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:27:06,851 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:27:06,851 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:27:06,852 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:27:06,853 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:27:06,854 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:27:06,854 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-25 13:27:06,856 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-09-25 13:27:06,858 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:27:06,859 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:27:06,860 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-09-25 13:27:06,860 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-25 13:27:06,862 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:27:06,863 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
[2020-09-25 13:27:06,893 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:27:06,893 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:27:06,895 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:27:06,895 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:27:06,895 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:27:06,896 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:27:06,896 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:27:06,896 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:27:06,896 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:27:06,897 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:27:06,897 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:27:06,897 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:27:06,897 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:27:06,897 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:27:06,898 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:27:06,898 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:27:06,898 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:27:06,898 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:27:06,898 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:27:06,899 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:27:06,899 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:27:06,899 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:27:06,899 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:27:06,900 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:27:06,900 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:27:06,900 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:27:06,900 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:27:06,900 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:27:06,901 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:27:06,901 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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
[2020-09-25 13:27:07,381 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:27:07,399 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:27:07,404 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:27:07,406 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:27:07,406 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:27:07,408 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04.c
[2020-09-25 13:27:07,481 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21a23b8e9/2c861107c3584154998c5da65c836652/FLAG088f6c94d
[2020-09-25 13:27:07,980 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:27:07,980 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test04.c
[2020-09-25 13:27:07,988 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21a23b8e9/2c861107c3584154998c5da65c836652/FLAG088f6c94d
[2020-09-25 13:27:08,316 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21a23b8e9/2c861107c3584154998c5da65c836652
[2020-09-25 13:27:08,329 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:27:08,334 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:27:08,335 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:27:08,336 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:27:08,340 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:27:08,341 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,346 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c31b5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08, skipping insertion in model container
[2020-09-25 13:27:08,346 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,356 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:27:08,381 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:27:08,679 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:27:08,696 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:27:08,713 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:27:08,731 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:27:08,731 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08 WrapperNode
[2020-09-25 13:27:08,731 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:27:08,732 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:27:08,732 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:27:08,733 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:27:08,748 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,752 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,852 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,852 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,858 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,860 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,862 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (1/1) ...
[2020-09-25 13:27:08,864 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:27:08,864 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:27:08,864 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:27:08,865 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:27:08,866 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (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
[2020-09-25 13:27:08,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:27:08,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:27:08,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure f
[2020-09-25 13:27:08,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:27:08,947 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:27:08,947 INFO  L130     BoogieDeclarations]: Found specification of procedure f
[2020-09-25 13:27:08,947 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:27:08,947 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:27:08,947 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:27:08,948 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:27:08,948 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:27:08,948 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:27:08,948 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:27:09,230 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:27:09,230 INFO  L295             CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 13:27:09,236 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:27:09 BoogieIcfgContainer
[2020-09-25 13:27:09,236 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:27:09,245 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:27:09,245 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:27:09,251 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:27:09,251 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:27:08" (1/3) ...
[2020-09-25 13:27:09,252 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e26d9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:27:09, skipping insertion in model container
[2020-09-25 13:27:09,252 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:08" (2/3) ...
[2020-09-25 13:27:09,257 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e26d9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:27:09, skipping insertion in model container
[2020-09-25 13:27:09,264 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:27:09" (3/3) ...
[2020-09-25 13:27:09,266 INFO  L109   eAbstractionObserver]: Analyzing ICFG test04.c
[2020-09-25 13:27:09,276 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:27:09,287 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:27:09,307 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:27:09,335 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:27:09,335 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:27:09,335 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:27:09,335 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:27:09,336 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:27:09,336 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:27:09,336 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:27:09,336 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:27:09,360 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states.
[2020-09-25 13:27:09,367 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2020-09-25 13:27:09,368 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:27:09,369 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]
[2020-09-25 13:27:09,369 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:27:09,375 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:27:09,376 INFO  L82        PathProgramCache]: Analyzing trace with hash -603365198, now seen corresponding path program 1 times
[2020-09-25 13:27:09,385 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:27:09,385 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352097895]
[2020-09-25 13:27:09,385 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:27:09,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:09,637 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:10,331 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:10,331 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-09-25 13:27:10,332 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:10,332 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 730
[2020-09-25 13:27:10,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:10,336 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:10,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 13:27:10,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 13:27:10,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-25 13:27:10,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 13:27:10,623 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:27:10,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:10,633 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:10,648 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:10,649 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:27:10,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:10,649 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 13:27:10,650 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:10,650 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:10,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:27:10,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:10,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:27:10,651 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:10,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2020-09-25 13:27:10,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:10,677 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:10,723 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:10,723 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:27:10,723 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:10,724 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 50
[2020-09-25 13:27:10,724 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:10,725 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:10,725 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 13:27:10,725 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:10,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 13:27:10,726 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:10,824 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:27:10,825 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352097895]
[2020-09-25 13:27:10,828 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:27:10,828 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-25 13:27:10,829 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023170620]
[2020-09-25 13:27:10,836 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-25 13:27:10,837 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:27:10,856 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-25 13:27:10,857 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2020-09-25 13:27:10,860 INFO  L87              Difference]: Start difference. First operand 40 states. Second operand 13 states.
[2020-09-25 13:27:11,331 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:27:11,332 INFO  L93              Difference]: Finished difference Result 44 states and 43 transitions.
[2020-09-25 13:27:11,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2020-09-25 13:27:11,334 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 24
[2020-09-25 13:27:11,335 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:27:11,344 INFO  L225             Difference]: With dead ends: 44
[2020-09-25 13:27:11,344 INFO  L226             Difference]: Without dead ends: 0
[2020-09-25 13:27:11,350 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552
[2020-09-25 13:27:11,372 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 13:27:11,381 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 13:27:11,383 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 13:27:11,383 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 13:27:11,386 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24
[2020-09-25 13:27:11,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:27:11,386 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 13:27:11,386 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-25 13:27:11,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 13:27:11,387 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 13:27:11,387 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:27:11,390 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 13:27:11,451 INFO  L268        CegarLoopResult]: For program point  L-1(line -1)  no Hoare annotation was computed.
[2020-09-25 13:27:11,452 INFO  L268        CegarLoopResult]: For program point  L-1-1(line -1)  no Hoare annotation was computed.
[2020-09-25 13:27:11,452 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-09-25 13:27:11,452 INFO  L264        CegarLoopResult]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-25 13:27:11,453 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-09-25 13:27:11,453 INFO  L268        CegarLoopResult]: For program point  fEXIT(lines 4 6)  no Hoare annotation was computed.
[2020-09-25 13:27:11,453 INFO  L271        CegarLoopResult]: At program point  fENTRY(lines 4 6)  the Hoare annotation is:  true
[2020-09-25 13:27:11,453 INFO  L268        CegarLoopResult]: For program point  L5(line 5)  no Hoare annotation was computed.
[2020-09-25 13:27:11,453 INFO  L268        CegarLoopResult]: For program point  L4(lines 4 6)  no Hoare annotation was computed.
[2020-09-25 13:27:11,454 INFO  L268        CegarLoopResult]: For program point  fFINAL(lines 4 6)  no Hoare annotation was computed.
[2020-09-25 13:27:11,454 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-09-25 13:27:11,454 INFO  L271        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  true
[2020-09-25 13:27:11,454 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-09-25 13:27:11,454 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-09-25 13:27:11,455 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 8 24)  no Hoare annotation was computed.
[2020-09-25 13:27:11,455 INFO  L268        CegarLoopResult]: For program point  L23(line 23)  no Hoare annotation was computed.
[2020-09-25 13:27:11,455 INFO  L264        CegarLoopResult]: At program point  L17(lines 8 24)  the Hoare annotation is:  false
[2020-09-25 13:27:11,455 INFO  L268        CegarLoopResult]: For program point  mainFINAL(lines 8 24)  no Hoare annotation was computed.
[2020-09-25 13:27:11,455 INFO  L268        CegarLoopResult]: For program point  L9(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,455 INFO  L268        CegarLoopResult]: For program point  L9-1(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,456 INFO  L268        CegarLoopResult]: For program point  L9-2(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,456 INFO  L268        CegarLoopResult]: For program point  L9-3(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,456 INFO  L268        CegarLoopResult]: For program point  L9-4(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,456 INFO  L268        CegarLoopResult]: For program point  L9-5(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,456 INFO  L268        CegarLoopResult]: For program point  L9-6(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,456 INFO  L268        CegarLoopResult]: For program point  L9-7(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,457 INFO  L268        CegarLoopResult]: For program point  L9-8(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,457 INFO  L268        CegarLoopResult]: For program point  mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22)  no Hoare annotation was computed.
[2020-09-25 13:27:11,457 INFO  L268        CegarLoopResult]: For program point  L9-9(line 9)  no Hoare annotation was computed.
[2020-09-25 13:27:11,457 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 8 24)  the Hoare annotation is:  (= |old(#valid)| |#valid|)
[2020-09-25 13:27:11,458 INFO  L268        CegarLoopResult]: For program point  L20(line 20)  no Hoare annotation was computed.
[2020-09-25 13:27:11,458 INFO  L268        CegarLoopResult]: For program point  L16(line 16)  no Hoare annotation was computed.
[2020-09-25 13:27:11,458 INFO  L268        CegarLoopResult]: For program point  L16-1(lines 16 18)  no Hoare annotation was computed.
[2020-09-25 13:27:11,458 INFO  L264        CegarLoopResult]: At program point  L14(line 14)  the Hoare annotation is:  (and (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-25 13:27:11,458 INFO  L268        CegarLoopResult]: For program point  L16-2(line 16)  no Hoare annotation was computed.
[2020-09-25 13:27:11,459 INFO  L268        CegarLoopResult]: For program point  L14-1(line 14)  no Hoare annotation was computed.
[2020-09-25 13:27:11,459 INFO  L268        CegarLoopResult]: For program point  L16-3(line 16)  no Hoare annotation was computed.
[2020-09-25 13:27:11,459 INFO  L268        CegarLoopResult]: For program point  L12(line 12)  no Hoare annotation was computed.
[2020-09-25 13:27:11,459 INFO  L268        CegarLoopResult]: For program point  L14-2(line 14)  no Hoare annotation was computed.
[2020-09-25 13:27:11,459 INFO  L268        CegarLoopResult]: For program point  L14-3(line 14)  no Hoare annotation was computed.
[2020-09-25 13:27:11,474 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:27:11 BoogieIcfgContainer
[2020-09-25 13:27:11,475 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:27:11,479 INFO  L168              Benchmark]: Toolchain (without parser) took 3146.01 ms. Allocated memory was 138.4 MB in the beginning and 232.8 MB in the end (delta: 94.4 MB). Free memory was 101.7 MB in the beginning and 154.6 MB in the end (delta: -52.9 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:11,480 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-25 13:27:11,481 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 396.51 ms. Allocated memory is still 138.4 MB. Free memory was 101.1 MB in the beginning and 91.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:11,482 INFO  L168              Benchmark]: Boogie Preprocessor took 131.85 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.4 MB in the beginning and 180.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:11,483 INFO  L168              Benchmark]: RCFGBuilder took 371.72 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 164.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:11,485 INFO  L168              Benchmark]: TraceAbstraction took 2230.00 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 163.9 MB in the beginning and 154.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:11,490 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 396.51 ms. Allocated memory is still 138.4 MB. Free memory was 101.1 MB in the beginning and 91.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 131.85 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.4 MB in the beginning and 180.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 371.72 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 164.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 2230.00 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 163.9 MB in the beginning and 154.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 22]: 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: 8]: Loop Invariant
    Derived loop invariant: 0
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 50 SDslu, 127 SDs, 0 SdLazy, 129 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 37 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 2553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...