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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/terminator_03-2.i
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 23:00:17,131 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 23:00:17,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 23:00:17,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 23:00:17,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 23:00:17,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 23:00:17,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 23:00:17,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 23:00:17,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 23:00:17,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 23:00:17,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 23:00:17,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 23:00:17,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 23:00:17,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 23:00:17,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 23:00:17,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 23:00:17,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 23:00:17,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 23:00:17,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 23:00:17,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 23:00:17,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 23:00:17,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 23:00:17,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 23:00:17,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 23:00:17,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 23:00:17,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 23:00:17,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 23:00:17,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 23:00:17,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 23:00:17,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 23:00:17,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 23:00:17,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
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[2019-10-13 23:00:17,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 23:00:17,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2019-10-13 23:00:17,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-13 23:00:17,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 23:00:17,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 23:00:17,249 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 23:00:17,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 23:00:17,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 23:00:17,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 23:00:17,250 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 23:00:17,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 23:00:17,251 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 23:00:17,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 23:00:17,251 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 23:00:17,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 23:00:17,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 23:00:17,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 23:00:17,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 23:00:17,252 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 23:00:17,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 23:00:17,253 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 23:00:17,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 23:00:17,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 23:00:17,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 23:00:17,256 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 23:00:17,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 23:00:17,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 23:00:17,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 23:00:17,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 23:00:17,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 23:00:17,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 23:00:17,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 23:00:17,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 23:00:17,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK
[2019-10-13 23:00:17,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 23:00:17,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 23:00:17,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 23:00:17,568 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 23:00:17,568 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 23:00:17,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-2.i
[2019-10-13 23:00:17,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83fee15c6/47bdc7bf56e8489eb9d2ae90ac7af593/FLAG6a00026d9
[2019-10-13 23:00:18,046 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 23:00:18,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-2.i
[2019-10-13 23:00:18,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83fee15c6/47bdc7bf56e8489eb9d2ae90ac7af593/FLAG6a00026d9
[2019-10-13 23:00:18,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83fee15c6/47bdc7bf56e8489eb9d2ae90ac7af593
[2019-10-13 23:00:18,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 23:00:18,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 23:00:18,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 23:00:18,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 23:00:18,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 23:00:18,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be43138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18, skipping insertion in model container
[2019-10-13 23:00:18,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 23:00:18,485 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 23:00:18,693 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 23:00:18,702 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 23:00:18,722 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 23:00:18,739 INFO L192 MainTranslator]: Completed translation
[2019-10-13 23:00:18,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18 WrapperNode
[2019-10-13 23:00:18,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 23:00:18,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 23:00:18,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 23:00:18,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 23:00:18,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (1/1) ...
[2019-10-13 23:00:18,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 23:00:18,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 23:00:18,898 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 23:00:18,898 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 23:00:18,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (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
[2019-10-13 23:00:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 23:00:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 23:00:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-13 23:00:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 23:00:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 23:00:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-13 23:00:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-13 23:00:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 23:00:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-13 23:00:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 23:00:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 23:00:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 23:00:19,148 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 23:00:19,149 INFO L284 CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-13 23:00:19,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:00:19 BoogieIcfgContainer
[2019-10-13 23:00:19,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 23:00:19,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 23:00:19,153 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 23:00:19,157 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 23:00:19,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:00:18" (1/3) ...
[2019-10-13 23:00:19,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:00:19, skipping insertion in model container
[2019-10-13 23:00:19,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:18" (2/3) ...
[2019-10-13 23:00:19,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:00:19, skipping insertion in model container
[2019-10-13 23:00:19,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:00:19" (3/3) ...
[2019-10-13 23:00:19,165 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-2.i
[2019-10-13 23:00:19,180 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 23:00:19,188 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 23:00:19,201 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 23:00:19,228 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 23:00:19,228 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 23:00:19,228 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 23:00:19,228 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 23:00:19,228 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 23:00:19,228 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 23:00:19,229 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 23:00:19,229 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 23:00:19,250 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states.
[2019-10-13 23:00:19,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-10-13 23:00:19,266 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 23:00:19,267 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:00:19,269 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:00:19,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:00:19,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1995182865, now seen corresponding path program 1 times
[2019-10-13 23:00:19,302 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:00:19,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99666711]
[2019-10-13 23:00:19,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:00:19,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:00:19,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:00:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:00:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 23:00:19,480 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99666711]
[2019-10-13 23:00:19,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:00:19,481 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 23:00:19,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403617431]
[2019-10-13 23:00:19,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 23:00:19,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:00:19,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 23:00:19,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 23:00:19,499 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states.
[2019-10-13 23:00:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:00:19,603 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions.
[2019-10-13 23:00:19,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2019-10-13 23:00:19,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11
[2019-10-13 23:00:19,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:00:19,611 INFO L225 Difference]: With dead ends: 37
[2019-10-13 23:00:19,611 INFO L226 Difference]: Without dead ends: 13
[2019-10-13 23:00:19,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-13 23:00:19,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2019-10-13 23:00:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2019-10-13 23:00:19,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2019-10-13 23:00:19,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2019-10-13 23:00:19,646 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11
[2019-10-13 23:00:19,647 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:00:19,647 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions.
[2019-10-13 23:00:19,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 23:00:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2019-10-13 23:00:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2019-10-13 23:00:19,648 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 23:00:19,648 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:00:19,649 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:00:19,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:00:19,649 INFO L82 PathProgramCache]: Analyzing trace with hash -2119643788, now seen corresponding path program 1 times
[2019-10-13 23:00:19,650 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:00:19,650 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149935545]
[2019-10-13 23:00:19,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:00:19,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:00:19,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:00:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:00:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 23:00:19,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149935545]
[2019-10-13 23:00:19,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:00:19,710 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-13 23:00:19,710 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141995196]
[2019-10-13 23:00:19,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-13 23:00:19,712 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:00:19,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-13 23:00:19,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2019-10-13 23:00:19,713 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states.
[2019-10-13 23:00:19,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:00:19,745 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions.
[2019-10-13 23:00:19,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2019-10-13 23:00:19,745 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12
[2019-10-13 23:00:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:00:19,746 INFO L225 Difference]: With dead ends: 13
[2019-10-13 23:00:19,746 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 23:00:19,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2019-10-13 23:00:19,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 23:00:19,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 23:00:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 23:00:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 23:00:19,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2019-10-13 23:00:19,749 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:00:19,749 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 23:00:19,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-13 23:00:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 23:00:19,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 23:00:19,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 23:00:19,794 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2019-10-13 23:00:19,795 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 23:00:19,795 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 23:00:19,795 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-10-13 23:00:19,795 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 23:00:19,795 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 23:00:19,796 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true
[2019-10-13 23:00:19,796 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 22) no Hoare annotation was computed.
[2019-10-13 23:00:19,796 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed.
[2019-10-13 23:00:19,796 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed.
[2019-10-13 23:00:19,796 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed.
[2019-10-13 23:00:19,797 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 18) the Hoare annotation is: (< 0 main_~y~0)
[2019-10-13 23:00:19,797 INFO L439 ceAbstractionStarter]: At program point L15-1(lines 15 19) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~y~0 0))
[2019-10-13 23:00:19,797 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 22) no Hoare annotation was computed.
[2019-10-13 23:00:19,797 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed.
[2019-10-13 23:00:19,798 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true
[2019-10-13 23:00:19,798 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed.
[2019-10-13 23:00:19,798 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed.
[2019-10-13 23:00:19,798 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed.
[2019-10-13 23:00:19,798 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed.
[2019-10-13 23:00:19,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:00:19 BoogieIcfgContainer
[2019-10-13 23:00:19,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 23:00:19,813 INFO L168 Benchmark]: Toolchain (without parser) took 1358.91 ms. Allocated memory was 146.8 MB in the beginning and 206.0 MB in the end (delta: 59.2 MB). Free memory was 104.9 MB in the beginning and 134.3 MB in the end (delta: -29.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB.
[2019-10-13 23:00:19,814 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-13 23:00:19,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.45 ms. Allocated memory is still 146.8 MB. Free memory was 104.6 MB in the beginning and 95.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2019-10-13 23:00:19,817 INFO L168 Benchmark]: Boogie Preprocessor took 157.01 ms. Allocated memory was 146.8 MB in the beginning and 206.0 MB in the end (delta: 59.2 MB). Free memory was 95.0 MB in the beginning and 184.5 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2019-10-13 23:00:19,818 INFO L168 Benchmark]: RCFGBuilder took 252.73 ms. Allocated memory is still 206.0 MB. Free memory was 184.5 MB in the beginning and 172.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB.
[2019-10-13 23:00:19,819 INFO L168 Benchmark]: TraceAbstraction took 658.59 ms. Allocated memory is still 206.0 MB. Free memory was 172.7 MB in the beginning and 134.3 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB.
[2019-10-13 23:00:19,823 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 285.45 ms. Allocated memory is still 146.8 MB. Free memory was 104.6 MB in the beginning and 95.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 157.01 ms. Allocated memory was 146.8 MB in the beginning and 206.0 MB in the end (delta: 59.2 MB). Free memory was 95.0 MB in the beginning and 184.5 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 252.73 ms. Allocated memory is still 206.0 MB. Free memory was 184.5 MB in the beginning and 172.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 658.59 ms. Allocated memory is still 206.0 MB. Free memory was 172.7 MB in the beginning and 134.3 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 5]: 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: 0 < y
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 11 SDslu, 79 SDs, 0 SdLazy, 25 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 8 PreInvPairs, 9 NumberOfFragments, 15 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 455 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, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...