/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -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/ldv-regression/test_union_cast.i
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This is Ultimate 0.1.24-fb55353
[2019-11-07 03:50:45,963 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-11-07 03:50:45,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-07 03:50:45,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-07 03:50:45,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-07 03:50:45,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-07 03:50:45,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-11-07 03:50:45,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-11-07 03:50:45,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-11-07 03:50:46,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-11-07 03:50:46,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-11-07 03:50:46,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-11-07 03:50:46,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-11-07 03:50:46,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-11-07 03:50:46,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-11-07 03:50:46,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-07 03:50:46,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-07 03:50:46,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-07 03:50:46,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-07 03:50:46,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-07 03:50:46,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-07 03:50:46,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-11-07 03:50:46,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-11-07 03:50:46,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-11-07 03:50:46,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-11-07 03:50:46,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-11-07 03:50:46,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-11-07 03:50:46,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-11-07 03:50:46,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-11-07 03:50:46,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-11-07 03:50:46,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-11-07 03:50:46,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-11-07 03:50:46,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-11-07 03:50:46,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-11-07 03:50:46,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-11-07 03:50:46,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-11-07 03:50:46,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-11-07 03:50:46,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-11-07 03:50:46,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-11-07 03:50:46,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-11-07 03:50:46,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-11-07 03:50:46,030 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
[2019-11-07 03:50:46,043 INFO L113 SettingsManager]: Loading preferences was successful
[2019-11-07 03:50:46,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-07 03:50:46,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-07 03:50:46,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-11-07 03:50:46,045 INFO L138 SettingsManager]: * Use SBE=true
[2019-11-07 03:50:46,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-07 03:50:46,046 INFO L138 SettingsManager]: * sizeof long=4
[2019-11-07 03:50:46,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-11-07 03:50:46,046 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-11-07 03:50:46,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-11-07 03:50:46,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-11-07 03:50:46,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-07 03:50:46,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-11-07 03:50:46,047 INFO L138 SettingsManager]: * sizeof long double=12
[2019-11-07 03:50:46,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-11-07 03:50:46,047 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-11-07 03:50:46,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-11-07 03:50:46,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-07 03:50:46,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-11-07 03:50:46,048 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-11-07 03:50:46,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-11-07 03:50:46,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-07 03:50:46,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-07 03:50:46,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-11-07 03:50:46,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-07 03:50:46,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-11-07 03:50:46,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-07 03:50:46,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-07 03:50:46,050 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
[2019-11-07 03:50:46,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-07 03:50:46,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-07 03:50:46,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-07 03:50:46,373 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-11-07 03:50:46,373 INFO L275 PluginConnector]: CDTParser initialized
[2019-11-07 03:50:46,374 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union_cast.i
[2019-11-07 03:50:46,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/914ba7e75/a20a1e80905148769d98198185d578d1/FLAG39ef43024
[2019-11-07 03:50:46,881 INFO L306 CDTParser]: Found 1 translation units.
[2019-11-07 03:50:46,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union_cast.i
[2019-11-07 03:50:46,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/914ba7e75/a20a1e80905148769d98198185d578d1/FLAG39ef43024
[2019-11-07 03:50:47,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/914ba7e75/a20a1e80905148769d98198185d578d1
[2019-11-07 03:50:47,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-07 03:50:47,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-11-07 03:50:47,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-07 03:50:47,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-07 03:50:47,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-07 03:50:47,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c96835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47, skipping insertion in model container
[2019-11-07 03:50:47,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,388 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-11-07 03:50:47,413 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-11-07 03:50:47,581 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-07 03:50:47,591 INFO L188 MainTranslator]: Completed pre-run
[2019-11-07 03:50:47,606 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-07 03:50:47,620 INFO L192 MainTranslator]: Completed translation
[2019-11-07 03:50:47,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47 WrapperNode
[2019-11-07 03:50:47,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-07 03:50:47,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-07 03:50:47,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-07 03:50:47,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-11-07 03:50:47,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (1/1) ...
[2019-11-07 03:50:47,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-07 03:50:47,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-07 03:50:47,744 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-11-07 03:50:47,744 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-11-07 03:50:47,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (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
[2019-11-07 03:50:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-07 03:50:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-07 03:50:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert
[2019-11-07 03:50:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-11-07 03:50:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-07 03:50:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert
[2019-11-07 03:50:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-11-07 03:50:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-11-07 03:50:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2019-11-07 03:50:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-11-07 03:50:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-11-07 03:50:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-11-07 03:50:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-07 03:50:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-07 03:50:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2019-11-07 03:50:48,011 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-07 03:50:48,011 INFO L284 CfgBuilder]: Removed 0 assume(true) statements.
[2019-11-07 03:50:48,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:48 BoogieIcfgContainer
[2019-11-07 03:50:48,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-07 03:50:48,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-07 03:50:48,015 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-11-07 03:50:48,018 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-11-07 03:50:48,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:50:47" (1/3) ...
[2019-11-07 03:50:48,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42698ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:48, skipping insertion in model container
[2019-11-07 03:50:48,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:47" (2/3) ...
[2019-11-07 03:50:48,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42698ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:48, skipping insertion in model container
[2019-11-07 03:50:48,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:48" (3/3) ...
[2019-11-07 03:50:48,021 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union_cast.i
[2019-11-07 03:50:48,034 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-07 03:50:48,042 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-11-07 03:50:48,061 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-11-07 03:50:48,096 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-11-07 03:50:48,096 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-11-07 03:50:48,096 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-07 03:50:48,096 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-07 03:50:48,096 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-07 03:50:48,097 INFO L378 AbstractCegarLoop]: Difference is false
[2019-11-07 03:50:48,097 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-07 03:50:48,097 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-07 03:50:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states.
[2019-11-07 03:50:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2019-11-07 03:50:48,135 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-07 03:50:48,136 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-07 03:50:48,138 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-07 03:50:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-07 03:50:48,144 INFO L82 PathProgramCache]: Analyzing trace with hash -113711847, now seen corresponding path program 1 times
[2019-11-07 03:50:48,155 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-07 03:50:48,156 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164686910]
[2019-11-07 03:50:48,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-07 03:50:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-07 03:50:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-07 03:50:48,337 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164686910]
[2019-11-07 03:50:48,338 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-07 03:50:48,339 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-11-07 03:50:48,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677053244]
[2019-11-07 03:50:48,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-07 03:50:48,345 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-07 03:50:48,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-07 03:50:48,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-07 03:50:48,370 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states.
[2019-11-07 03:50:48,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-07 03:50:48,409 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions.
[2019-11-07 03:50:48,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-11-07 03:50:48,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2019-11-07 03:50:48,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-07 03:50:48,419 INFO L225 Difference]: With dead ends: 18
[2019-11-07 03:50:48,420 INFO L226 Difference]: Without dead ends: 0
[2019-11-07 03:50:48,424 INFO L630 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
[2019-11-07 03:50:48,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-11-07 03:50:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-11-07 03:50:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-11-07 03:50:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-11-07 03:50:48,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8
[2019-11-07 03:50:48,458 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-07 03:50:48,458 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-11-07 03:50:48,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-07 03:50:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-11-07 03:50:48,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-11-07 03:50:48,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-11-07 03:50:48,537 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true
[2019-11-07 03:50:48,537 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-11-07 03:50:48,537 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed.
[2019-11-07 03:50:48,537 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed.
[2019-11-07 03:50:48,539 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true
[2019-11-07 03:50:48,540 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-11-07 03:50:48,540 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-11-07 03:50:48,540 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-11-07 03:50:48,540 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-11-07 03:50:48,540 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 19 32) the Hoare annotation is: true
[2019-11-07 03:50:48,541 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed.
[2019-11-07 03:50:48,541 INFO L439 ceAbstractionStarter]: At program point L29-2(line 29) the Hoare annotation is: false
[2019-11-07 03:50:48,541 INFO L443 ceAbstractionStarter]: For program point L29-3(line 29) no Hoare annotation was computed.
[2019-11-07 03:50:48,541 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 19 32) no Hoare annotation was computed.
[2019-11-07 03:50:48,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:50:48 BoogieIcfgContainer
[2019-11-07 03:50:48,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-11-07 03:50:48,553 INFO L168 Benchmark]: Toolchain (without parser) took 1204.19 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 102.9 MB in the beginning and 144.3 MB in the end (delta: -41.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB.
[2019-11-07 03:50:48,554 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-11-07 03:50:48,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.61 ms. Allocated memory is still 145.8 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2019-11-07 03:50:48,559 INFO L168 Benchmark]: Boogie Preprocessor took 122.27 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 92.7 MB in the beginning and 180.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2019-11-07 03:50:48,560 INFO L168 Benchmark]: RCFGBuilder took 269.69 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 167.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB.
[2019-11-07 03:50:48,562 INFO L168 Benchmark]: TraceAbstraction took 533.01 ms. Allocated memory is still 201.9 MB. Free memory was 166.3 MB in the beginning and 144.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
[2019-11-07 03:50:48,573 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 270.61 ms. Allocated memory is still 145.8 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 122.27 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 92.7 MB in the beginning and 180.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 269.69 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 167.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 533.01 ms. Allocated memory is still 201.9 MB. Free memory was 166.3 MB in the beginning and 144.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 6]: 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
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...