/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ......................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 14:08:47,241 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:08:47,244 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:08:47,260 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:08:47,261 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:08:47,265 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:08:47,267 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:08:47,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:08:47,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:08:47,283 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:08:47,285 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:08:47,286 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:08:47,287 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:08:47,290 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:08:47,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:08:47,296 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:08:47,296 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:08:47,298 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:08:47,300 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:08:47,302 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:08:47,305 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:08:47,309 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:08:47,313 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:08:47,316 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:08:47,317 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:08:47,318 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:08:47,318 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:08:47,319 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:08:47,323 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:08:47,324 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:08:47,325 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:08:47,325 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:08:47,325 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:08:47,326 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:08:47,327 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:08:47,328 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:08:47,329 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:08:47,343 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:08:47,344 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:08:47,345 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:08:47,345 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:08:47,345 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:08:47,346 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:08:47,346 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:08:47,346 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:08:47,346 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:08:47,346 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:08:47,346 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:08:47,347 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:08:47,347 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:08:47,347 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:08:47,347 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:08:47,348 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:08:47,349 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:08:47,349 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:08:47,349 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:08:47,349 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:08:47,349 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:08:47,350 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:08:47,350 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:08:47,350 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:08:47,350 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:08:47,350 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:08:47,352 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:08:47,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:08:47,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:08:47,352 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-09-20 14:08:47,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:08:47,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:08:47,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:08:47,429 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:08:47,430 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:08:47,431 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-20 14:08:47,768 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1544af6/c8faced94a984efd8b5b374fc8d45264/FLAGcae7f41dc [2018-09-20 14:08:47,924 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:08:47,924 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-20 14:08:47,932 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1544af6/c8faced94a984efd8b5b374fc8d45264/FLAGcae7f41dc [2018-09-20 14:08:47,947 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1544af6/c8faced94a984efd8b5b374fc8d45264 [2018-09-20 14:08:47,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:08:47,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:08:47,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:08:47,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:08:47,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:08:47,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:08:47" (1/1) ... [2018-09-20 14:08:47,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ade425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:47, skipping insertion in model container [2018-09-20 14:08:47,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:08:47" (1/1) ... [2018-09-20 14:08:47,979 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:08:48,186 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:08:48,206 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:08:48,217 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:08:48,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48 WrapperNode [2018-09-20 14:08:48,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:08:48,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:08:48,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:08:48,245 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:08:48,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (1/1) ... [2018-09-20 14:08:48,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (1/1) ... [2018-09-20 14:08:48,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (1/1) ... [2018-09-20 14:08:48,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (1/1) ... [2018-09-20 14:08:48,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (1/1) ... [2018-09-20 14:08:48,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (1/1) ... [2018-09-20 14:08:48,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (1/1) ... [2018-09-20 14:08:48,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:08:48,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:08:48,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:08:48,288 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:08:48,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (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 [2018-09-20 14:08:48,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:08:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:08:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:08:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-09-20 14:08:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:08:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:08:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 14:08:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 14:08:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:08:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-09-20 14:08:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 14:08:48,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 14:08:48,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 14:08:48,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 14:08:48,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 14:08:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 14:08:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:08:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:08:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:08:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 14:08:48,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 14:08:48,821 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:08:48,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:08:48 BoogieIcfgContainer [2018-09-20 14:08:48,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:08:48,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:08:48,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:08:48,827 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:08:48,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:08:47" (1/3) ... [2018-09-20 14:08:48,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78667a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:08:48, skipping insertion in model container [2018-09-20 14:08:48,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:48" (2/3) ... [2018-09-20 14:08:48,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78667a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:08:48, skipping insertion in model container [2018-09-20 14:08:48,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:08:48" (3/3) ... [2018-09-20 14:08:48,833 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-20 14:08:48,843 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:08:48,853 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:08:48,904 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:08:48,905 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:08:48,905 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:08:48,905 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:08:48,906 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:08:48,906 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:08:48,906 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:08:48,906 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:08:48,906 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:08:48,927 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-09-20 14:08:48,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-20 14:08:48,934 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:08:48,936 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:08:48,939 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:08:48,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1314302442, now seen corresponding path program 1 times [2018-09-20 14:08:48,949 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:08:48,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:08:49,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:08:49,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:08:49,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:08:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:08:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:08:49,162 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 14:08:49,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:08:49 BoogieIcfgContainer [2018-09-20 14:08:49,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:08:49,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:08:49,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:08:49,200 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:08:49,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:08:48" (3/4) ... [2018-09-20 14:08:49,206 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 14:08:49,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:08:49,207 INFO L168 Benchmark]: Toolchain (without parser) took 1255.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:08:49,210 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:08:49,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.06 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:08:49,212 INFO L168 Benchmark]: Boogie Preprocessor took 42.70 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:08:49,213 INFO L168 Benchmark]: RCFGBuilder took 534.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:08:49,214 INFO L168 Benchmark]: TraceAbstraction took 375.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 14:08:49,215 INFO L168 Benchmark]: Witness Printer took 7.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:08:49,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.06 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.70 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 534.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Witness Printer took 7.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 22. Possible FailurePath: [L40] float a,r; [L42] a = __VERIFIER_nondet_float() [L45] CALL, EXPR InvSqrt(a) VAL [\old(x)=1597463012] [L17] float xhalf = 0.5f*x; VAL [\old(x)=1597463012, x=1597463012] [L18] FCALL union float_int i; VAL [\old(x)=1597463012, i={1597463010:0}, x=1597463012] [L19] FCALL i.f = x VAL [\old(x)=1597463012, i={1597463010:0}, x=1597463012] [L20] EXPR, FCALL i.i VAL [\old(x)=1597463012, i={1597463010:0}, i.i=0, x=1597463012] [L20] FCALL i.i = 0x5f3759df - (i.i>>1) VAL [\old(x)=1597463012, i={1597463010:0}, i.i=0, x=1597463012] [L21] EXPR, FCALL i.f VAL [\old(x)=1597463012, i={1597463010:0}, i.f=1597463012, x=1597463012] [L21] x = i.f VAL [\old(x)=1597463012, i={1597463010:0}, i.f=1597463012, x=1597463012] [L21] FCALL x = i.f VAL [\old(x)=1597463012, i={1597463010:0}, i.f=1597463012, x=1597463012, x = i.f=1597463008] [L22] x = x*(1.5f-xhalf*x*x) [L23] return x; VAL [\old(x)=1597463012, \result=1597463011, i={1597463010:0}, x=1597463011] [L23] RET return x; VAL [\old(x)=1597463012, \result=1597463011, x=1597463011] [L45] EXPR InvSqrt(a) VAL [a=1597463012, InvSqrt(a)=1597463011] [L45] r = InvSqrt(a) [L47] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 14:08:51,628 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:08:51,630 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:08:51,644 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:08:51,645 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:08:51,647 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:08:51,650 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:08:51,653 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:08:51,656 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:08:51,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:08:51,661 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:08:51,662 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:08:51,664 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:08:51,667 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:08:51,675 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:08:51,675 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:08:51,676 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:08:51,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:08:51,686 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:08:51,688 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:08:51,692 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:08:51,694 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:08:51,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:08:51,701 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:08:51,701 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:08:51,702 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:08:51,703 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:08:51,706 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:08:51,707 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:08:51,710 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:08:51,710 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:08:51,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:08:51,712 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:08:51,712 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:08:51,714 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:08:51,715 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:08:51,717 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:08:51,746 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:08:51,747 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:08:51,748 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:08:51,749 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:08:51,750 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:08:51,751 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:08:51,751 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:08:51,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:08:51,751 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:08:51,752 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:08:51,752 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:08:51,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:08:51,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:08:51,752 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:08:51,754 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:08:51,754 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:08:51,754 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:08:51,754 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:08:51,754 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:08:51,755 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:08:51,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:08:51,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:08:51,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:08:51,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:08:51,755 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:08:51,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:08:51,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:08:51,756 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:08:51,756 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:08:51,756 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:08:51,759 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:08:51,759 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-09-20 14:08:51,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:08:51,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:08:51,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:08:51,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:08:51,839 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:08:51,840 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-20 14:08:52,210 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fb158bde/4fa9aebe3d8c4e54a2d810333ffb9d49/FLAG77f33c280 [2018-09-20 14:08:52,399 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:08:52,399 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-20 14:08:52,405 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fb158bde/4fa9aebe3d8c4e54a2d810333ffb9d49/FLAG77f33c280 [2018-09-20 14:08:52,422 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fb158bde/4fa9aebe3d8c4e54a2d810333ffb9d49 [2018-09-20 14:08:52,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:08:52,431 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:08:52,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:08:52,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:08:52,439 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:08:52,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed58eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52, skipping insertion in model container [2018-09-20 14:08:52,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,457 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:08:52,671 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:08:52,691 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:08:52,703 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:08:52,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52 WrapperNode [2018-09-20 14:08:52,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:08:52,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:08:52,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:08:52,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:08:52,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (1/1) ... [2018-09-20 14:08:52,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:08:52,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:08:52,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:08:52,778 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:08:52,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (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 [2018-09-20 14:08:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:08:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:08:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:08:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-09-20 14:08:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:08:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:08:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 14:08:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 14:08:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:08:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-09-20 14:08:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 14:08:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 14:08:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 14:08:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 14:08:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 14:08:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 14:08:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:08:52,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:08:52,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:08:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 14:08:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 14:08:53,150 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:08:55,311 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:08:55,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:08:55 BoogieIcfgContainer [2018-09-20 14:08:55,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:08:55,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:08:55,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:08:55,316 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:08:55,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:08:52" (1/3) ... [2018-09-20 14:08:55,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8c4ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:08:55, skipping insertion in model container [2018-09-20 14:08:55,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:08:52" (2/3) ... [2018-09-20 14:08:55,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8c4ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:08:55, skipping insertion in model container [2018-09-20 14:08:55,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:08:55" (3/3) ... [2018-09-20 14:08:55,320 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-20 14:08:55,330 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:08:55,339 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:08:55,386 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:08:55,387 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:08:55,387 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:08:55,388 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:08:55,388 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:08:55,388 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:08:55,389 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:08:55,389 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:08:55,389 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:08:55,417 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-09-20 14:08:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-20 14:08:55,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:08:55,425 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:08:55,428 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:08:55,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1314302442, now seen corresponding path program 1 times [2018-09-20 14:08:55,438 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:08:55,439 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 14:08:55,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:08:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:08:56,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:08:57,425 WARN L178 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-20 14:08:57,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-09-20 14:08:57,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-09-20 14:08:57,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:08:57,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:08:58,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:08:58,174 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:30 [2018-09-20 14:08:58,783 WARN L178 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-20 14:08:59,579 WARN L178 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 14:08:59,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 41 treesize of output 30 [2018-09-20 14:08:59,792 INFO L303 Elim1Store]: Index analysis took 103 ms [2018-09-20 14:08:59,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 21 [2018-09-20 14:08:59,796 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:08:59,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:09:00,537 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:09:00,538 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:49, output treesize:29 [2018-09-20 14:09:01,357 WARN L178 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-20 14:09:01,435 INFO L477 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 33 treesize of output 25 [2018-09-20 14:09:01,553 INFO L303 Elim1Store]: Index analysis took 116 ms [2018-09-20 14:09:01,555 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 36 [2018-09-20 14:09:01,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:09:01,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:09:02,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:09:02,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:50, output treesize:42 [2018-09-20 14:09:03,323 WARN L178 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-20 14:09:04,914 WARN L178 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-20 14:09:35,235 WARN L178 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 30 [2018-09-20 14:09:37,299 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) is different from false [2018-09-20 14:09:39,335 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) is different from true [2018-09-20 14:09:41,383 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))))))) is different from false [2018-09-20 14:09:43,424 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))))))) is different from true [2018-09-20 14:09:59,971 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse4 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul RNE .cse2 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse1) .cse2) .cse2)))))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq .cse1 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (fp.leq ((_ to_fp 11 53) RNE .cse0) ((_ to_fp 11 53) RNE 10.0))))))) (and .cse4 (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse5 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse5 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse5 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse6 (let ((.cse7 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul RNE .cse6 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse5) .cse6) .cse6))))) ((_ to_fp 11 53) RNE 10.0))))))) (and (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse8 (let ((.cse10 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul RNE .cse8 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse9) .cse8) .cse8)))) (_ +zero 8 24))) (fp.leq .cse9 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse9 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) .cse4))) is different from false [2018-09-20 14:10:14,469 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse1 (let ((.cse3 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse2) .cse1) .cse1)))) (_ +zero 8 24))) (fp.leq .cse2 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse2 ((_ to_fp 8 24) RNE (/ 1.0 10.0))))))) (and .cse0 (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse4 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul RNE .cse5 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse4) .cse5) .cse5))))) ((_ to_fp 11 53) RNE 10.0))))))) (and (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (let ((.cse7 (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul RNE .cse9 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse8) .cse9) .cse9)))))) (and (fp.geq .cse7 (_ +zero 8 24)) (fp.leq .cse8 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse8 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (fp.leq ((_ to_fp 11 53) RNE .cse7) ((_ to_fp 11 53) RNE 10.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2018-09-20 14:10:24,814 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse0 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.leq .cse1 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse3 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul RNE .cse4 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) RNE 10.0))))))) is different from false [2018-09-20 14:10:26,858 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse0 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.leq .cse1 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse3 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul RNE .cse4 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) RNE 10.0))))))) is different from true [2018-09-20 14:10:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:10:26,874 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:10:26,893 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:10:26,894 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-20 14:10:26,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-20 14:10:26,914 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-20 14:10:26,915 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=64, Unknown=18, NotChecked=100, Total=210 [2018-09-20 14:10:26,918 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 15 states. [2018-09-20 14:10:39,577 WARN L178 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-09-20 14:10:46,054 WARN L178 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-09-20 14:10:54,584 WARN L178 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-09-20 14:11:05,242 WARN L178 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-20 14:11:11,555 WARN L178 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 40 [2018-09-20 14:11:17,161 WARN L178 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-20 14:11:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:11:28,506 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2018-09-20 14:11:28,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-20 14:11:28,552 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 26 [2018-09-20 14:11:28,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:11:28,560 INFO L225 Difference]: With dead ends: 41 [2018-09-20 14:11:28,560 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 14:11:28,565 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 80.2s TimeCoverageRelationStatistics Valid=58, Invalid=177, Unknown=25, NotChecked=160, Total=420 [2018-09-20 14:11:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 14:11:28,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 14:11:28,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 14:11:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 14:11:28,593 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-09-20 14:11:28,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:11:28,594 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 14:11:28,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-20 14:11:28,594 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 14:11:28,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 14:11:28,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 14:11:59,212 WARN L178 SmtUtils]: Spent 30.42 s on a formula simplification. DAG size of input: 115 DAG size of output: 1 [2018-09-20 14:12:03,304 WARN L178 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 34 [2018-09-20 14:12:03,307 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 14:12:03,307 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 14:12:03,307 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:12:03,307 INFO L426 ceAbstractionStarter]: For program point InvSqrtFINAL(lines 15 24) no Hoare annotation was computed. [2018-09-20 14:12:03,308 INFO L426 ceAbstractionStarter]: For program point InvSqrtEXIT(lines 15 24) no Hoare annotation was computed. [2018-09-20 14:12:03,308 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 14:12:03,308 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 14:12:03,308 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 14:12:03,308 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-20 14:12:03,308 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 14:12:03,309 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 14:12:03,309 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 14:12:03,309 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-20 14:12:03,309 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-20 14:12:03,309 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-20 14:12:03,309 INFO L426 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-09-20 14:12:03,309 INFO L429 ceAbstractionStarter]: At program point InvSqrtENTRY(lines 15 24) the Hoare annotation is: true [2018-09-20 14:12:03,310 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:12:03,310 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 14:12:03,310 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 14:12:03,310 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 14:12:03,311 INFO L422 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (= main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))))))) [2018-09-20 14:12:03,311 INFO L426 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-09-20 14:12:03,311 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 38 49) the Hoare annotation is: true [2018-09-20 14:12:03,312 INFO L422 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (and (fp.geq main_~a~0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (fp.leq main_~a~0 ((_ to_fp 8 24) RNE 100.0))) [2018-09-20 14:12:03,312 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 38 49) no Hoare annotation was computed. [2018-09-20 14:12:03,312 INFO L426 ceAbstractionStarter]: For program point L45-1(line 45) no Hoare annotation was computed. [2018-09-20 14:12:03,312 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 38 49) no Hoare annotation was computed. [2018-09-20 14:12:03,312 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-09-20 14:12:03,313 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-09-20 14:12:03,313 INFO L426 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-09-20 14:12:03,313 INFO L426 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-09-20 14:12:03,313 INFO L426 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-09-20 14:12:03,313 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-09-20 14:12:03,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:12:03 BoogieIcfgContainer [2018-09-20 14:12:03,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:12:03,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:12:03,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:12:03,319 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:12:03,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:08:55" (3/4) ... [2018-09-20 14:12:03,328 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 14:12:03,336 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 14:12:03,337 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure InvSqrt [2018-09-20 14:12:03,337 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 14:12:03,337 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-09-20 14:12:03,343 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-09-20 14:12:03,343 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-20 14:12:03,344 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 14:12:03,344 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 14:12:03,391 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 14:12:03,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:12:03,392 INFO L168 Benchmark]: Toolchain (without parser) took 190964.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -55.6 MB). Peak memory consumption was 97.0 MB. Max. memory is 11.5 GB. [2018-09-20 14:12:03,393 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:12:03,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:12:03,394 INFO L168 Benchmark]: Boogie Preprocessor took 41.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:12:03,395 INFO L168 Benchmark]: RCFGBuilder took 2533.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:12:03,396 INFO L168 Benchmark]: TraceAbstraction took 188005.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. [2018-09-20 14:12:03,396 INFO L168 Benchmark]: Witness Printer took 73.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-09-20 14:12:03,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2533.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 188005.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. * Witness Printer took 73.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 5 procedures, 34 locations, 1 error locations. SAFE Result, 187.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 61.6s AutomataDifference, 0.0s DeadEndRemovalTime, 34.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 6 SDslu, 118 SDs, 0 SdLazy, 49 SolverSat, 4 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 32.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 80.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 132 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 930 FormulaSimplificationTreeSizeReductionInter, 34.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 90.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 25 ConstructedInterpolants, 14 QuantifiedInterpolants, 51875 SizeOfPredicates, 11 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...