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/array-1.c
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 22:59:38,280 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 22:59:38,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 22:59:38,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 22:59:38,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 22:59:38,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 22:59:38,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 22:59:38,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 22:59:38,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 22:59:38,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 22:59:38,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 22:59:38,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 22:59:38,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 22:59:38,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 22:59:38,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 22:59:38,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 22:59:38,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 22:59:38,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 22:59:38,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 22:59:38,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 22:59:38,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 22:59:38,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 22:59:38,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 22:59:38,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 22:59:38,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 22:59:38,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 22:59:38,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 22:59:38,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 22:59:38,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 22:59:38,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 22:59:38,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 22:59:38,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 22:59:38,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 22:59:38,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 22:59:38,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 22:59:38,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 22:59:38,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 22:59:38,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 22:59:38,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 22:59:38,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 22:59:38,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 22:59:38,359 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 22:59:38,373 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 22:59:38,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 22:59:38,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 22:59:38,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 22:59:38,377 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 22:59:38,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 22:59:38,377 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 22:59:38,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 22:59:38,378 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 22:59:38,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 22:59:38,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 22:59:38,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 22:59:38,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 22:59:38,379 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 22:59:38,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 22:59:38,379 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 22:59:38,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 22:59:38,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 22:59:38,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 22:59:38,380 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 22:59:38,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 22:59:38,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 22:59:38,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 22:59:38,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 22:59:38,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 22:59:38,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 22:59:38,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 22:59:38,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 22:59:38,383 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 22:59:38,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 22:59:38,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 22:59:38,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 22:59:38,689 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 22:59:38,689 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 22:59:38,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c
[2019-10-13 22:59:38,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3da6b1a0/eef4cffb85024fc28cac94cc16842ab4/FLAG85bae9b99
[2019-10-13 22:59:39,160 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 22:59:39,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c
[2019-10-13 22:59:39,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3da6b1a0/eef4cffb85024fc28cac94cc16842ab4/FLAG85bae9b99
[2019-10-13 22:59:39,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3da6b1a0/eef4cffb85024fc28cac94cc16842ab4
[2019-10-13 22:59:39,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 22:59:39,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 22:59:39,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 22:59:39,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 22:59:39,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 22:59:39,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702ad793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39, skipping insertion in model container
[2019-10-13 22:59:39,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,555 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 22:59:39,574 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 22:59:39,733 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 22:59:39,737 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 22:59:39,756 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 22:59:39,774 INFO L192 MainTranslator]: Completed translation
[2019-10-13 22:59:39,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39 WrapperNode
[2019-10-13 22:59:39,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 22:59:39,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 22:59:39,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 22:59:39,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 22:59:39,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (1/1) ...
[2019-10-13 22:59:39,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 22:59:39,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 22:59:39,893 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 22:59:39,893 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 22:59:39,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (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 22:59:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 22:59:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 22:59:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-13 22:59:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 22:59:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 22:59:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-13 22:59:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 22:59:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 22:59:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 22:59:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 22:59:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 22:59:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 22:59:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 22:59:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 22:59:40,273 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 22:59:40,273 INFO L284 CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-13 22:59:40,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:40 BoogieIcfgContainer
[2019-10-13 22:59:40,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 22:59:40,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 22:59:40,276 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 22:59:40,279 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 22:59:40,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:59:39" (1/3) ...
[2019-10-13 22:59:40,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703fd652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:40, skipping insertion in model container
[2019-10-13 22:59:40,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:39" (2/3) ...
[2019-10-13 22:59:40,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703fd652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:40, skipping insertion in model container
[2019-10-13 22:59:40,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:40" (3/3) ...
[2019-10-13 22:59:40,284 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c
[2019-10-13 22:59:40,292 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 22:59:40,300 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 22:59:40,311 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 22:59:40,333 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 22:59:40,334 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 22:59:40,334 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 22:59:40,334 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 22:59:40,334 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 22:59:40,334 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 22:59:40,335 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 22:59:40,335 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 22:59:40,349 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states.
[2019-10-13 22:59:40,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2019-10-13 22:59:40,354 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:59:40,354 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:59:40,356 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:59:40,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:59:40,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1684679511, now seen corresponding path program 1 times
[2019-10-13 22:59:40,367 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:59:40,368 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159216342]
[2019-10-13 22:59:40,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:59:40,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:59:40,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:59:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:59:40,663 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 22:59:40,664 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159216342]
[2019-10-13 22:59:40,666 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:59:40,666 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 22:59:40,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141995196]
[2019-10-13 22:59:40,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 22:59:40,672 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:59:40,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 22:59:40,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:59:40,691 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states.
[2019-10-13 22:59:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:59:40,736 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions.
[2019-10-13 22:59:40,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 22:59:40,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2019-10-13 22:59:40,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:59:40,747 INFO L225 Difference]: With dead ends: 29
[2019-10-13 22:59:40,747 INFO L226 Difference]: Without dead ends: 12
[2019-10-13 22:59:40,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:59:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2019-10-13 22:59:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2019-10-13 22:59:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2019-10-13 22:59:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2019-10-13 22:59:40,800 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10
[2019-10-13 22:59:40,801 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:59:40,801 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2019-10-13 22:59:40,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 22:59:40,802 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2019-10-13 22:59:40,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-10-13 22:59:40,804 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:59:40,804 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:59:40,804 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:59:40,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:59:40,806 INFO L82 PathProgramCache]: Analyzing trace with hash -734883470, now seen corresponding path program 1 times
[2019-10-13 22:59:40,806 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:59:40,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133815137]
[2019-10-13 22:59:40,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:59:40,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:59:40,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:59:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:59:41,136 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 20
[2019-10-13 22:59:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 22:59:41,238 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133815137]
[2019-10-13 22:59:41,238 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028965356]
[2019-10-13 22:59:41,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 22:59:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:59:41,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core
[2019-10-13 22:59:41,309 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 22:59:41,430 WARN L225 Elim1Store]: Array PQE input equivalent to false
[2019-10-13 22:59:41,431 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:41,438 WARN L225 Elim1Store]: Array PQE input equivalent to false
[2019-10-13 22:59:41,439 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:41,531 INFO L567 ElimStorePlain]: treesize reduction 32, result has 72.2 percent of original size
[2019-10-13 22:59:41,558 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37
[2019-10-13 22:59:41,558 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:41,572 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37
[2019-10-13 22:59:41,573 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:41,620 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-10-13 22:59:41,621 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts.
[2019-10-13 22:59:41,621 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:235, output treesize:45
[2019-10-13 22:59:41,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,690 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2019-10-13 22:59:41,691 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:41,699 INFO L567 ElimStorePlain]: treesize reduction 16, result has 15.8 percent of original size
[2019-10-13 22:59:41,699 INFO L464 ElimStorePlain]: Eliminatee |#memory_int| vanished before elimination
[2019-10-13 22:59:41,699 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:41,700 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:31, output treesize:3
[2019-10-13 22:59:41,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 22:59:41,737 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 22:59:41,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,800 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 22:59:41,876 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40
[2019-10-13 22:59:41,896 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28
[2019-10-13 22:59:41,897 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:41,919 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size
[2019-10-13 22:59:41,919 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:42,049 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55
[2019-10-13 22:59:42,049 INFO L567 ElimStorePlain]: treesize reduction 141, result has 54.7 percent of original size
[2019-10-13 22:59:42,057 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34
[2019-10-13 22:59:42,068 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26
[2019-10-13 22:59:42,069 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:42,078 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-10-13 22:59:42,079 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts.
[2019-10-13 22:59:42,109 INFO L567 ElimStorePlain]: treesize reduction 134, result has 16.8 percent of original size
[2019-10-13 22:59:42,110 INFO L464 ElimStorePlain]: Eliminatee v_prenex_43 vanished before elimination
[2019-10-13 22:59:42,110 INFO L464 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination
[2019-10-13 22:59:42,110 INFO L464 ElimStorePlain]: Eliminatee v_prenex_13 vanished before elimination
[2019-10-13 22:59:42,110 INFO L464 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination
[2019-10-13 22:59:42,111 INFO L496 ElimStorePlain]: Start of recursive call 1: 18 dim-0 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2019-10-13 22:59:42,112 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 24 variables, input treesize:330, output treesize:27
[2019-10-13 22:59:42,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 22:59:42,148 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [446857100]
[2019-10-13 22:59:42,173 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest
[2019-10-13 22:59:42,174 INFO L169 IcfgInterpreter]: Building call graph
[2019-10-13 22:59:42,180 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2019-10-13 22:59:42,188 INFO L179 IcfgInterpreter]: Starting interpretation
[2019-10-13 22:59:42,188 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2019-10-13 22:59:42,315 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs
[2019-10-13 22:59:42,505 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs
[2019-10-13 22:59:42,537 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs
[2019-10-13 22:59:42,547 INFO L183 IcfgInterpreter]: Interpretation finished
[2019-10-13 22:59:42,547 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are:
[2019-10-13 22:59:42,548 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0))
[2019-10-13 22:59:42,548 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0))
[2019-10-13 22:59:42,549 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 97#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0))
[2019-10-13 22:59:42,549 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true
[2019-10-13 22:59:42,549 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 92#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|))
[2019-10-13 22:59:42,550 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 83#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond))
[2019-10-13 22:59:42,550 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 73#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)))
[2019-10-13 22:59:42,550 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 78#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))))
[2019-10-13 22:59:42,551 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 88#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond))
[2019-10-13 22:59:42,551 INFO L193 IcfgInterpreter]: Reachable states at location L26 satisfy 68#(and (not (< (mod main_~j~0 4294967296) (mod main_~SIZE~0 4294967296))) (= |main_#t~mem5| (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)))
[2019-10-13 22:59:42,551 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 63#true
[2019-10-13 22:59:42,907 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences.
[2019-10-13 22:59:42,908 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 9] total 21
[2019-10-13 22:59:42,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752524570]
[2019-10-13 22:59:42,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states
[2019-10-13 22:59:42,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:59:42,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2019-10-13 22:59:42,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420
[2019-10-13 22:59:42,912 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 21 states.
[2019-10-13 22:59:43,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:59:43,376 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions.
[2019-10-13 22:59:43,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2019-10-13 22:59:43,376 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 11
[2019-10-13 22:59:43,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:59:43,377 INFO L225 Difference]: With dead ends: 16
[2019-10-13 22:59:43,377 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 22:59:43,379 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702
[2019-10-13 22:59:43,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 22:59:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 22:59:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 22:59:43,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 22:59:43,381 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11
[2019-10-13 22:59:43,381 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:59:43,381 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 22:59:43,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states.
[2019-10-13 22:59:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 22:59:43,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 22:59:43,589 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 22:59:43,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 22:59:43,860 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46
[2019-10-13 22:59:43,863 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|))
[2019-10-13 22:59:43,863 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 22:59:43,863 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 22:59:43,864 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|))
[2019-10-13 22:59:43,864 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 22:59:43,864 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 22:59:43,865 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0)))
[2019-10-13 22:59:43,866 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0)) (let ((.cse0 (select |#memory_int| |main_~#array~0.base|))) (and (= 0 |main_~#array~0.offset|) (= 0 (select |#valid| 0)) (= |main_#t~mem5| (select .cse0 |main_~#array~0.offset|)) (let ((.cse1 (= main_~SIZE~0 1)) (.cse2 (select .cse0 (+ (* (mod (+ main_~j~0 4294967295) 4294967296) 4) |main_~#array~0.offset|))) (.cse3 (= main_~j~0 1))) (or (and .cse1 (= .cse2 main_~menor~0) .cse3) (and .cse1 (< main_~menor~0 .cse2) .cse3))))))
[2019-10-13 22:59:43,866 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed.
[2019-10-13 22:59:43,866 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed.
[2019-10-13 22:59:43,866 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (let ((.cse1 (= 0 |main_~#array~0.offset|)) (.cse2 (= 0 (select |#valid| 0))) (.cse0 (= main_~SIZE~0 1))) (or (and .cse0 .cse1 .cse2 (= main_~j~0 0)) (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0)) (and .cse1 .cse2 (let ((.cse3 (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~j~0 4294967295) 4294967296) 4) |main_~#array~0.offset|))) (.cse4 (= main_~j~0 1))) (or (and .cse0 (= .cse3 main_~menor~0) .cse4) (and .cse0 (< main_~menor~0 .cse3) .cse4))))))
[2019-10-13 22:59:43,867 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true
[2019-10-13 22:59:43,867 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed.
[2019-10-13 22:59:43,867 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed.
[2019-10-13 22:59:43,868 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed.
[2019-10-13 22:59:43,868 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed.
[2019-10-13 22:59:43,869 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed.
[2019-10-13 22:59:43,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-10-13 22:59:43,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-10-13 22:59:43,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-10-13 22:59:43,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-10-13 22:59:43,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:59:43 BoogieIcfgContainer
[2019-10-13 22:59:43,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 22:59:43,906 INFO L168 Benchmark]: Toolchain (without parser) took 4366.95 ms. Allocated memory was 137.9 MB in the beginning and 246.9 MB in the end (delta: 109.1 MB). Free memory was 101.6 MB in the beginning and 91.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 118.9 MB. Max. memory is 7.1 GB.
[2019-10-13 22:59:43,907 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
[2019-10-13 22:59:43,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.74 ms. Allocated memory is still 137.9 MB. Free memory was 101.4 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2019-10-13 22:59:43,914 INFO L168 Benchmark]: Boogie Preprocessor took 117.52 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 179.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB.
[2019-10-13 22:59:43,918 INFO L168 Benchmark]: RCFGBuilder took 381.97 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 161.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB.
[2019-10-13 22:59:43,919 INFO L168 Benchmark]: TraceAbstraction took 3627.17 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 161.7 MB in the beginning and 91.7 MB in the end (delta: 69.9 MB). Peak memory consumption was 115.0 MB. Max. memory is 7.1 GB.
[2019-10-13 22:59:43,926 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 235.74 ms. Allocated memory is still 137.9 MB. Free memory was 101.4 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 117.52 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 179.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 381.97 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 161.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3627.17 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 161.7 MB in the beginning and 91.7 MB in the end (delta: 69.9 MB). Peak memory consumption was 115.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #NULL
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
* 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: 19]: Loop Invariant
[2019-10-13 22:59:43,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-10-13 22:59:43,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-10-13 22:59:43,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL
[2019-10-13 22:59:43,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-10-13 22:59:43,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
Derived loop invariant: ((((((((SIZE == 1 && 0 == array) && 0 == \valid[0]) && j == 0) || !(#NULL <= 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0)) || ((0 == array && 0 == \valid[0]) && (((SIZE == 1 && unknown-#memory_int-unknown[array][(j + 4294967295) % 4294967296 * 4 + array] == menor) && j == 1) || ((SIZE == 1 && menor < unknown-#memory_int-unknown[array][(j + 4294967295) % 4294967296 * 4 + array]) && j == 1)))
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 3.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 20 SDtfs, 10 SDslu, 47 SDs, 0 SdLazy, 57 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 9 PreInvPairs, 12 NumberOfFragments, 239 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 1970 SizeOfPredicates, 13 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 378, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 20, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME[ms]: 102, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 14, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 2, TOOLS_QUANTIFIERELIM_APPLICATIONS: 16, TOOLS_QUANTIFIERELIM_TIME[ms]: 108, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 70, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 22, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 17, DOMAIN_JOIN_TIME[ms]: 179, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 4, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 3, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 3, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 3, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 109, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 109, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 24, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 24, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 11, DAG_COMPRESSION_PROCESSED_NODES: 57, DAG_COMPRESSION_RETAINED_NODES: 41, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...