./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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 /storage/repos/svcomp/c/float-benchs/zonotope_loose_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 8c97aae237a76dbf85532dc8d030e712982e570a ...................................................................................................................................................................................................................... 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 /storage/repos/svcomp/c/float-benchs/zonotope_loose_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 8c97aae237a76dbf85532dc8d030e712982e570a ............................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:33:37,164 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:33:37,166 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:33:37,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:33:37,179 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:33:37,180 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:33:37,181 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:33:37,183 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:33:37,185 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:33:37,186 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:33:37,187 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:33:37,187 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:33:37,188 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:33:37,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:33:37,190 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:33:37,191 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:33:37,192 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:33:37,194 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:33:37,196 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:33:37,198 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:33:37,199 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:33:37,200 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:33:37,206 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:33:37,206 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:33:37,207 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:33:37,211 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:33:37,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:33:37,213 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:33:37,214 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:33:37,215 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:33:37,215 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:33:37,221 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:33:37,221 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:33:37,221 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:33:37,222 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:33:37,223 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:33:37,223 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:33:37,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:33:37,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:33:37,260 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:33:37,260 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:33:37,260 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:33:37,260 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:33:37,261 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:33:37,261 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:33:37,261 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:33:37,261 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:33:37,261 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:33:37,261 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:33:37,262 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:33:37,262 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:33:37,262 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:33:37,262 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:33:37,262 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:33:37,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:33:37,264 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:33:37,264 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:33:37,264 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:33:37,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:33:37,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:33:37,265 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:33:37,265 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:33:37,265 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:33:37,265 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:33:37,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:33:37,265 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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-12-31 03:33:37,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:33:37,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:33:37,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:33:37,355 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:33:37,355 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:33:37,356 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-31 03:33:37,426 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7691d4d/d5882d3ed8394744a6ae9537e47f0e07/FLAGe80352330 [2018-12-31 03:33:37,881 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:33:37,881 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-31 03:33:37,887 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7691d4d/d5882d3ed8394744a6ae9537e47f0e07/FLAGe80352330 [2018-12-31 03:33:38,236 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7691d4d/d5882d3ed8394744a6ae9537e47f0e07 [2018-12-31 03:33:38,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:33:38,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:33:38,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:33:38,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:33:38,248 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:33:38,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540addd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38, skipping insertion in model container [2018-12-31 03:33:38,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:33:38,282 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:33:38,486 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:33:38,491 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:33:38,510 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:33:38,527 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:33:38,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38 WrapperNode [2018-12-31 03:33:38,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:33:38,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:33:38,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:33:38,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:33:38,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:33:38,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:33:38,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:33:38,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:33:38,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (1/1) ... [2018-12-31 03:33:38,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:33:38,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:33:38,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:33:38,609 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:33:38,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (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 [2018-12-31 03:33:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:33:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:33:38,900 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:33:38,901 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 03:33:38,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:33:38 BoogieIcfgContainer [2018-12-31 03:33:38,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:33:38,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:33:38,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:33:38,906 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:33:38,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:33:38" (1/3) ... [2018-12-31 03:33:38,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314c0254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:33:38, skipping insertion in model container [2018-12-31 03:33:38,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:38" (2/3) ... [2018-12-31 03:33:38,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314c0254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:33:38, skipping insertion in model container [2018-12-31 03:33:38,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:33:38" (3/3) ... [2018-12-31 03:33:38,910 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-12-31 03:33:38,921 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:33:38,929 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:33:38,946 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:33:38,980 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:33:38,981 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:33:38,981 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:33:38,981 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:33:38,982 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:33:38,982 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:33:38,982 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:33:38,982 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:33:38,982 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:33:38,998 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 03:33:39,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:33:39,004 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:33:39,005 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:33:39,008 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:33:39,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:33:39,014 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2018-12-31 03:33:39,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:33:39,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:33:39,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:33:39,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:33:39,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:33:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:33:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:33:39,129 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:33:39,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:33:39 BoogieIcfgContainer [2018-12-31 03:33:39,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:33:39,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:33:39,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:33:39,146 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:33:39,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:33:38" (3/4) ... [2018-12-31 03:33:39,150 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:33:39,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:33:39,151 INFO L168 Benchmark]: Toolchain (without parser) took 909.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -133.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:33:39,154 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:33:39,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.47 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:33:39,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.46 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:33:39,156 INFO L168 Benchmark]: Boogie Preprocessor took 31.28 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:33:39,157 INFO L168 Benchmark]: RCFGBuilder took 293.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:33:39,158 INFO L168 Benchmark]: TraceAbstraction took 242.43 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 03:33:39,159 INFO L168 Benchmark]: Witness Printer took 4.84 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. [2018-12-31 03:33:39,163 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.47 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.46 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.28 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 293.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 242.43 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.84 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x [L19] COND TRUE y >= 0 [L19] y = x / 10. [L9] COND TRUE !(cond) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.1s 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=10occurred 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, 5 NumberOfCodeBlocks, 5 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 0.1.24-2e94e6a [2018-12-31 03:33:41,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:33:41,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:33:41,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:33:41,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:33:41,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:33:41,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:33:41,567 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:33:41,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:33:41,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:33:41,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:33:41,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:33:41,571 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:33:41,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:33:41,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:33:41,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:33:41,575 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:33:41,577 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:33:41,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:33:41,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:33:41,581 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:33:41,583 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:33:41,585 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:33:41,586 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:33:41,586 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:33:41,587 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:33:41,588 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:33:41,589 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:33:41,590 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:33:41,591 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:33:41,591 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:33:41,592 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:33:41,592 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:33:41,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:33:41,594 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:33:41,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:33:41,595 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:33:41,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:33:41,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:33:41,613 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:33:41,613 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:33:41,613 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:33:41,614 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:33:41,614 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:33:41,614 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:33:41,614 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:33:41,614 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:33:41,615 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:33:41,615 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:33:41,615 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:33:41,615 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:33:41,615 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:33:41,616 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:33:41,616 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:33:41,616 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:33:41,616 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:33:41,616 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:33:41,617 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:33:41,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:33:41,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:33:41,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:33:41,617 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:33:41,618 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:33:41,618 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:33:41,618 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:33:41,618 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:33:41,618 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:33:41,618 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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-12-31 03:33:41,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:33:41,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:33:41,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:33:41,716 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:33:41,717 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:33:41,717 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-31 03:33:41,778 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dedba8fb3/16cd94b8adf64591a87c305fab7bda53/FLAGe909e94c1 [2018-12-31 03:33:42,215 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:33:42,216 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-31 03:33:42,226 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dedba8fb3/16cd94b8adf64591a87c305fab7bda53/FLAGe909e94c1 [2018-12-31 03:33:42,547 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dedba8fb3/16cd94b8adf64591a87c305fab7bda53 [2018-12-31 03:33:42,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:33:42,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:33:42,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:33:42,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:33:42,558 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:33:42,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb3b9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42, skipping insertion in model container [2018-12-31 03:33:42,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:33:42,593 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:33:42,822 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:33:42,829 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:33:42,848 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:33:42,865 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:33:42,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42 WrapperNode [2018-12-31 03:33:42,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:33:42,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:33:42,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:33:42,866 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:33:42,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:33:42,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:33:42,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:33:42,906 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:33:42,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (1/1) ... [2018-12-31 03:33:42,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:33:42,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:33:42,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:33:42,953 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:33:42,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (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 [2018-12-31 03:33:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:33:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:33:46,165 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:33:46,165 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 03:33:46,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:33:46 BoogieIcfgContainer [2018-12-31 03:33:46,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:33:46,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:33:46,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:33:46,171 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:33:46,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:33:42" (1/3) ... [2018-12-31 03:33:46,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19066bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:33:46, skipping insertion in model container [2018-12-31 03:33:46,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:33:42" (2/3) ... [2018-12-31 03:33:46,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19066bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:33:46, skipping insertion in model container [2018-12-31 03:33:46,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:33:46" (3/3) ... [2018-12-31 03:33:46,176 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-12-31 03:33:46,187 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:33:46,195 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:33:46,210 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:33:46,243 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:33:46,244 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:33:46,244 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:33:46,244 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:33:46,246 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:33:46,246 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:33:46,247 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:33:46,247 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:33:46,247 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:33:46,262 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 03:33:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:33:46,268 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:33:46,269 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:33:46,271 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:33:46,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:33:46,278 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2018-12-31 03:33:46,283 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:33:46,283 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) [2018-12-31 03:33:46,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 03:33:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:33:46,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:33:49,158 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from false [2018-12-31 03:33:51,376 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from true [2018-12-31 03:34:09,766 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= (_ bv0 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) .cse1) (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) .cse1) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse3 (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse4))) (and (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)) (fp.geq .cse3 (_ +zero 11 53)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse4))))) (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond)))) is different from false [2018-12-31 03:34:21,207 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from false [2018-12-31 03:34:23,439 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from true [2018-12-31 03:34:23,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:34:23,444 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:34:23,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:34:23,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:34:23,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 03:34:23,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 03:34:23,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=4, Unknown=5, NotChecked=12, Total=30 [2018-12-31 03:34:23,484 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2018-12-31 03:34:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:34:28,133 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-12-31 03:34:28,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:34:28,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-12-31 03:34:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:34:28,199 INFO L225 Difference]: With dead ends: 18 [2018-12-31 03:34:28,200 INFO L226 Difference]: Without dead ends: 6 [2018-12-31 03:34:28,203 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=9, Invalid=4, Unknown=5, NotChecked=12, Total=30 [2018-12-31 03:34:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-12-31 03:34:28,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-31 03:34:28,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-31 03:34:28,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2018-12-31 03:34:28,229 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2018-12-31 03:34:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:34:28,230 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2018-12-31 03:34:28,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 03:34:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2018-12-31 03:34:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:34:28,230 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:34:28,231 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:34:28,231 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:34:28,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:34:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash 29739460, now seen corresponding path program 1 times [2018-12-31 03:34:28,232 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:34:28,232 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 03:34:28,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:34:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:34:28,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:34:31,459 WARN L860 $PredicateComparison]: unable to prove that (and (= (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) is different from true [2018-12-31 03:34:33,536 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_ULTIMATE.start_main_~y~0)))) is different from false [2018-12-31 03:34:35,611 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_ULTIMATE.start_main_~y~0)))) is different from true [2018-12-31 03:34:52,289 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse2 (_ +zero 11 53)) (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)) (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond)) (and .cse0 (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))))) is different from false [2018-12-31 03:35:02,692 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from false [2018-12-31 03:35:04,748 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from true [2018-12-31 03:35:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:35:04,751 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:35:04,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:35:04,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:35:04,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 03:35:04,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 03:35:04,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=3, Unknown=6, NotChecked=12, Total=30 [2018-12-31 03:35:04,769 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 6 states. [2018-12-31 03:35:04,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:35:04,771 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2018-12-31 03:35:04,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:35:04,771 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-12-31 03:35:04,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:35:04,771 INFO L225 Difference]: With dead ends: 6 [2018-12-31 03:35:04,772 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 03:35:04,774 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=9, Invalid=3, Unknown=6, NotChecked=12, Total=30 [2018-12-31 03:35:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 03:35:04,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 03:35:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 03:35:04,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 03:35:04,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-12-31 03:35:04,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:35:04,776 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 03:35:04,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 03:35:04,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 03:35:04,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 03:35:04,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 03:35:04,834 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 03:35:04,834 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 03:35:04,834 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 03:35:04,835 INFO L451 ceAbstractionStarter]: At program point L23(lines 11 24) the Hoare annotation is: true [2018-12-31 03:35:04,835 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-12-31 03:35:04,835 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 20) no Hoare annotation was computed. [2018-12-31 03:35:04,835 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-12-31 03:35:04,835 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-12-31 03:35:04,836 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-12-31 03:35:04,836 INFO L451 ceAbstractionStarter]: At program point L9-3(line 9) the Hoare annotation is: true [2018-12-31 03:35:04,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:35:04 BoogieIcfgContainer [2018-12-31 03:35:04,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:35:04,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:35:04,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:35:04,845 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:35:04,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:33:46" (3/4) ... [2018-12-31 03:35:04,849 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 03:35:04,860 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 03:35:04,860 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 03:35:04,901 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 03:35:04,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:35:04,902 INFO L168 Benchmark]: Toolchain (without parser) took 82350.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -89.3 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:04,903 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:35:04,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.80 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:04,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:35:04,906 INFO L168 Benchmark]: Boogie Preprocessor took 47.14 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:04,906 INFO L168 Benchmark]: RCFGBuilder took 3212.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:04,907 INFO L168 Benchmark]: TraceAbstraction took 78676.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:04,908 INFO L168 Benchmark]: Witness Printer took 56.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:35:04,913 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.80 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.14 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3212.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 78676.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * Witness Printer took 56.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. SAFE Result, 78.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 13 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 72.6s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 6 QuantifiedInterpolants, 1600 SizeOfPredicates, 8 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...