/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loop-lit/gj2007b.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-b7b32d2
[2021-02-22 02:23:31,067 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-02-22 02:23:31,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-02-22 02:23:31,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-02-22 02:23:31,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-02-22 02:23:31,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-02-22 02:23:31,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-02-22 02:23:31,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-02-22 02:23:31,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-02-22 02:23:31,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-02-22 02:23:31,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-02-22 02:23:31,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-02-22 02:23:31,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-02-22 02:23:31,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-02-22 02:23:31,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-02-22 02:23:31,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-02-22 02:23:31,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-02-22 02:23:31,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-02-22 02:23:31,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-02-22 02:23:31,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-02-22 02:23:31,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-02-22 02:23:31,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-02-22 02:23:31,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-02-22 02:23:31,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-02-22 02:23:31,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-02-22 02:23:31,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-02-22 02:23:31,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-02-22 02:23:31,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-02-22 02:23:31,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-02-22 02:23:31,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-02-22 02:23:31,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-02-22 02:23:31,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-02-22 02:23:31,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-02-22 02:23:31,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-02-22 02:23:31,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-02-22 02:23:31,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-02-22 02:23:31,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-02-22 02:23:31,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-02-22 02:23:31,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-02-22 02:23:31,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-02-22 02:23:31,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-02-22 02:23:31,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf
[2021-02-22 02:23:31,174 INFO L113 SettingsManager]: Loading preferences was successful
[2021-02-22 02:23:31,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-02-22 02:23:31,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-02-22 02:23:31,177 INFO L138 SettingsManager]: * sizeof long=4
[2021-02-22 02:23:31,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-02-22 02:23:31,178 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-02-22 02:23:31,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-02-22 02:23:31,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-02-22 02:23:31,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-02-22 02:23:31,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-02-22 02:23:31,179 INFO L138 SettingsManager]: * sizeof long double=12
[2021-02-22 02:23:31,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-02-22 02:23:31,180 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-02-22 02:23:31,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-02-22 02:23:31,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-02-22 02:23:31,181 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2021-02-22 02:23:31,181 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-02-22 02:23:31,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-02-22 02:23:31,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-02-22 02:23:31,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-02-22 02:23:31,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2021-02-22 02:23:31,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-02-22 02:23:31,182 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX
[2021-02-22 02:23:31,183 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-02-22 02:23:31,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-02-22 02:23:31,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-02-22 02:23:31,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-02-22 02:23:31,570 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-02-22 02:23:31,571 INFO L275 PluginConnector]: CDTParser initialized
[2021-02-22 02:23:31,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007b.i
[2021-02-22 02:23:31,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851840766/fa3ca578b2c44940bee0636893fb484c/FLAGdd8c71895
[2021-02-22 02:23:32,267 INFO L306 CDTParser]: Found 1 translation units.
[2021-02-22 02:23:32,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b.i
[2021-02-22 02:23:32,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851840766/fa3ca578b2c44940bee0636893fb484c/FLAGdd8c71895
[2021-02-22 02:23:32,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851840766/fa3ca578b2c44940bee0636893fb484c
[2021-02-22 02:23:32,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-02-22 02:23:32,690 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-02-22 02:23:32,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-02-22 02:23:32,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-02-22 02:23:32,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-02-22 02:23:32,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:32" (1/1) ...
[2021-02-22 02:23:32,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e81f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:32, skipping insertion in model container
[2021-02-22 02:23:32,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:32" (1/1) ...
[2021-02-22 02:23:32,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-02-22 02:23:32,731 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-02-22 02:23:32,972 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b.i[895,908]
[2021-02-22 02:23:32,992 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-22 02:23:33,004 INFO L203 MainTranslator]: Completed pre-run
[2021-02-22 02:23:33,022 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b.i[895,908]
[2021-02-22 02:23:33,029 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-22 02:23:33,053 INFO L208 MainTranslator]: Completed translation
[2021-02-22 02:23:33,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33 WrapperNode
[2021-02-22 02:23:33,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-02-22 02:23:33,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-02-22 02:23:33,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-02-22 02:23:33,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-02-22 02:23:33,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
[2021-02-22 02:23:33,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
[2021-02-22 02:23:33,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
[2021-02-22 02:23:33,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
[2021-02-22 02:23:33,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
[2021-02-22 02:23:33,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
[2021-02-22 02:23:33,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
[2021-02-22 02:23:33,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-02-22 02:23:33,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-02-22 02:23:33,123 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-02-22 02:23:33,123 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-02-22 02:23:33,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (1/1) ...
No working directory specified, using /storage/repos/ultimate/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
[2021-02-22 02:23:33,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-02-22 02:23:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-02-22 02:23:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-02-22 02:23:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-02-22 02:23:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-02-22 02:23:33,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-02-22 02:23:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-02-22 02:23:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-02-22 02:23:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2021-02-22 02:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2021-02-22 02:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-02-22 02:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-02-22 02:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-02-22 02:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-02-22 02:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-02-22 02:23:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-02-22 02:23:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-02-22 02:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-02-22 02:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-02-22 02:23:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-02-22 02:23:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-02-22 02:23:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-02-22 02:23:33,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-02-22 02:23:33,572 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-02-22 02:23:33,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:33 BoogieIcfgContainer
[2021-02-22 02:23:33,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-02-22 02:23:33,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-02-22 02:23:33,577 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-02-22 02:23:33,580 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-02-22 02:23:33,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:23:32" (1/3) ...
[2021-02-22 02:23:33,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2c8a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:33, skipping insertion in model container
[2021-02-22 02:23:33,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:33" (2/3) ...
[2021-02-22 02:23:33,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2c8a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:33, skipping insertion in model container
[2021-02-22 02:23:33,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:33" (3/3) ...
[2021-02-22 02:23:33,584 INFO L111 eAbstractionObserver]: Analyzing ICFG gj2007b.i
[2021-02-22 02:23:33,592 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2021-02-22 02:23:33,596 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-02-22 02:23:33,617 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-02-22 02:23:33,642 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-02-22 02:23:33,642 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-02-22 02:23:33,642 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2021-02-22 02:23:33,642 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-02-22 02:23:33,643 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-02-22 02:23:33,643 INFO L381 AbstractCegarLoop]: Difference is false
[2021-02-22 02:23:33,643 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-02-22 02:23:33,643 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-02-22 02:23:33,659 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states.
[2021-02-22 02:23:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-02-22 02:23:33,668 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-22 02:23:33,669 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]
[2021-02-22 02:23:33,669 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-22 02:23:33,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-22 02:23:33,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1543512865, now seen corresponding path program 1 times
[2021-02-22 02:23:33,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-02-22 02:23:33,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908990982]
[2021-02-22 02:23:33,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-22 02:23:33,761 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2021-02-22 02:23:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-22 02:23:33,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:33,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:23:33,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:33,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:23:33,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-22 02:23:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-22 02:23:33,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:33,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:23:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-22 02:23:33,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908990982]
[2021-02-22 02:23:34,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-22 02:23:34,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-02-22 02:23:34,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106295782]
[2021-02-22 02:23:34,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-02-22 02:23:34,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2021-02-22 02:23:34,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-02-22 02:23:34,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-02-22 02:23:34,023 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states.
[2021-02-22 02:23:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-22 02:23:34,148 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions.
[2021-02-22 02:23:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-02-22 02:23:34,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21
[2021-02-22 02:23:34,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-22 02:23:34,159 INFO L225 Difference]: With dead ends: 50
[2021-02-22 02:23:34,160 INFO L226 Difference]: Without dead ends: 31
[2021-02-22 02:23:34,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-02-22 02:23:34,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2021-02-22 02:23:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2021-02-22 02:23:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2021-02-22 02:23:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2021-02-22 02:23:34,219 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 21
[2021-02-22 02:23:34,219 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-22 02:23:34,219 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2021-02-22 02:23:34,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-02-22 02:23:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2021-02-22 02:23:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-02-22 02:23:34,221 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-22 02:23:34,221 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]
[2021-02-22 02:23:34,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-02-22 02:23:34,222 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-22 02:23:34,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-22 02:23:34,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1557365680, now seen corresponding path program 1 times
[2021-02-22 02:23:34,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-02-22 02:23:34,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102861864]
[2021-02-22 02:23:34,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-22 02:23:34,227 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2021-02-22 02:23:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-22 02:23:34,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:34,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:23:34,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:34,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-22 02:23:34,337 WARN L141 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size
[2021-02-22 02:23:34,339 WARN L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7
[2021-02-22 02:23:34,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:34,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-02-22 02:23:34,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:34,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-02-22 02:23:34,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:34,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:23:34,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-22 02:23:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-22 02:23:34,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:34,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:23:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-22 02:23:34,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102861864]
[2021-02-22 02:23:34,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-22 02:23:34,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-02-22 02:23:34,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003809455]
[2021-02-22 02:23:34,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-02-22 02:23:34,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2021-02-22 02:23:34,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-02-22 02:23:34,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-02-22 02:23:34,487 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 7 states.
[2021-02-22 02:23:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-22 02:23:34,863 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions.
[2021-02-22 02:23:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-02-22 02:23:34,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21
[2021-02-22 02:23:34,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-22 02:23:34,867 INFO L225 Difference]: With dead ends: 46
[2021-02-22 02:23:34,868 INFO L226 Difference]: Without dead ends: 38
[2021-02-22 02:23:34,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110
[2021-02-22 02:23:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2021-02-22 02:23:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36.
[2021-02-22 02:23:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2021-02-22 02:23:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions.
[2021-02-22 02:23:34,915 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 21
[2021-02-22 02:23:34,915 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-22 02:23:34,915 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions.
[2021-02-22 02:23:34,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2021-02-22 02:23:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions.
[2021-02-22 02:23:34,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-02-22 02:23:34,919 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-22 02:23:34,919 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]
[2021-02-22 02:23:34,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-02-22 02:23:34,920 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-22 02:23:34,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-22 02:23:34,921 INFO L82 PathProgramCache]: Analyzing trace with hash -2003455287, now seen corresponding path program 1 times
[2021-02-22 02:23:34,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-02-22 02:23:34,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151486014]
[2021-02-22 02:23:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-22 02:23:34,954 WARN L141 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size
[2021-02-22 02:23:34,974 WARN L147 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size 21
[2021-02-22 02:23:34,984 WARN L141 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size
[2021-02-22 02:23:34,988 WARN L147 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size 21
[2021-02-22 02:23:35,004 WARN L141 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size
[2021-02-22 02:23:35,022 WARN L147 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size 8
[2021-02-22 02:23:35,028 WARN L141 QuantifierPusher]: treesize reduction 8, result has 75.0 percent of original size
[2021-02-22 02:23:35,033 WARN L147 QuantifierPusher]: treesize reduction 8, result has 75.0 percent of original size 24
[2021-02-22 02:23:35,037 WARN L141 QuantifierPusher]: treesize reduction 5, result has 79.2 percent of original size
[2021-02-22 02:23:35,042 WARN L147 QuantifierPusher]: treesize reduction 5, result has 79.2 percent of original size 19
[2021-02-22 02:23:35,046 WARN L141 QuantifierPusher]: treesize reduction 5, result has 79.2 percent of original size
[2021-02-22 02:23:35,051 WARN L147 QuantifierPusher]: treesize reduction 5, result has 79.2 percent of original size 19
[2021-02-22 02:23:35,069 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size
[2021-02-22 02:23:35,077 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts
[2021-02-22 02:23:35,092 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:35,093 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-02-22 02:23:35,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:23:35,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36
[2021-02-22 02:23:35,128 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20
[2021-02-22 02:23:35,137 WARN L141 QuantifierPusher]: treesize reduction 8, result has 84.6 percent of original size
[2021-02-22 02:23:35,142 WARN L147 QuantifierPusher]: treesize reduction 8, result has 84.6 percent of original size 44
[2021-02-22 02:23:35,144 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION
[2021-02-22 02:23:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-22 02:23:35,220 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-22 02:23:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-22 02:23:35,274 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-22 02:23:35,299 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2021-02-22 02:23:35,299 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-02-22 02:23:35,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-02-22 02:23:35,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:23:35 BoogieIcfgContainer
[2021-02-22 02:23:35,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-02-22 02:23:35,317 INFO L168 Benchmark]: Toolchain (without parser) took 2638.74 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 145.6 MB in the beginning and 183.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 512.8 kB. Max. memory is 8.0 GB.
[2021-02-22 02:23:35,317 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 169.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-22 02:23:35,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.99 ms. Allocated memory is still 169.9 MB. Free memory was 144.5 MB in the beginning and 135.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2021-02-22 02:23:35,319 INFO L168 Benchmark]: Boogie Preprocessor took 63.13 ms. Allocated memory is still 169.9 MB. Free memory was 135.0 MB in the beginning and 133.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-02-22 02:23:35,320 INFO L168 Benchmark]: RCFGBuilder took 451.39 ms. Allocated memory is still 169.9 MB. Free memory was 133.5 MB in the beginning and 118.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
[2021-02-22 02:23:35,321 INFO L168 Benchmark]: TraceAbstraction took 1738.83 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 118.0 MB in the beginning and 183.5 MB in the end (delta: -65.5 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-22 02:23:35,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 169.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 358.99 ms. Allocated memory is still 169.9 MB. Free memory was 144.5 MB in the beginning and 135.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 63.13 ms. Allocated memory is still 169.9 MB. Free memory was 135.0 MB in the beginning and 133.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 451.39 ms. Allocated memory is still 169.9 MB. Free memory was 133.5 MB in the beginning and 118.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 1738.83 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 118.0 MB in the beginning and 183.5 MB in the end (delta: -65.5 MB). There was no memory consumed. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 19]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L25] int x = 0;
[L26] int m = 0;
[L27] int n = __VERIFIER_nondet_int();
[L28] COND TRUE x < n
[L29] COND TRUE __VERIFIER_nondet_int()
[L30] m = x
[L32] x = x + 1
[L28] COND FALSE !(x < n)
[L34] CALL __VERIFIER_assert((m >= 0 || n <= 0))
[L18] COND TRUE !(cond)
[L19] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 69 SDslu, 57 SDs, 0 SdLazy, 93 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...