./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 0ed9222f 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 0.1.24-0ed9222-m [2019-01-12 08:44:06,380 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 08:44:06,383 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 08:44:06,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 08:44:06,402 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 08:44:06,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 08:44:06,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 08:44:06,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 08:44:06,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 08:44:06,421 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 08:44:06,422 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 08:44:06,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 08:44:06,425 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 08:44:06,427 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 08:44:06,428 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 08:44:06,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 08:44:06,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 08:44:06,433 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 08:44:06,440 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 08:44:06,442 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 08:44:06,443 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 08:44:06,444 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 08:44:06,447 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 08:44:06,447 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 08:44:06,447 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 08:44:06,448 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 08:44:06,449 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 08:44:06,450 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 08:44:06,451 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 08:44:06,452 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 08:44:06,452 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 08:44:06,453 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 08:44:06,453 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 08:44:06,453 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 08:44:06,455 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 08:44:06,456 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 08:44:06,456 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 08:44:06,471 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 08:44:06,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 08:44:06,473 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 08:44:06,473 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 08:44:06,474 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 08:44:06,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 08:44:06,474 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 08:44:06,474 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 08:44:06,474 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 08:44:06,475 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 08:44:06,475 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 08:44:06,476 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 08:44:06,476 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 08:44:06,476 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 08:44:06,476 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 08:44:06,476 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 08:44:06,477 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 08:44:06,477 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 08:44:06,477 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 08:44:06,477 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 08:44:06,477 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 08:44:06,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:44:06,479 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 08:44:06,479 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 08:44:06,479 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 08:44:06,480 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 08:44:06,480 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 08:44:06,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 08:44:06,480 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 [2019-01-12 08:44:06,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 08:44:06,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 08:44:06,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 08:44:06,566 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 08:44:06,567 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 08:44:06,567 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2019-01-12 08:44:06,632 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9658ce4/7ba4d594217c46a3bb771fa0d52535e4/FLAG6ec3db905 [2019-01-12 08:44:07,036 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 08:44:07,037 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2019-01-12 08:44:07,043 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9658ce4/7ba4d594217c46a3bb771fa0d52535e4/FLAG6ec3db905 [2019-01-12 08:44:07,435 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9658ce4/7ba4d594217c46a3bb771fa0d52535e4 [2019-01-12 08:44:07,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 08:44:07,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 08:44:07,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 08:44:07,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 08:44:07,445 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 08:44:07,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8f157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07, skipping insertion in model container [2019-01-12 08:44:07,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 08:44:07,479 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 08:44:07,676 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:44:07,683 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 08:44:07,705 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:44:07,722 INFO L195 MainTranslator]: Completed translation [2019-01-12 08:44:07,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07 WrapperNode [2019-01-12 08:44:07,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 08:44:07,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 08:44:07,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 08:44:07,724 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 08:44:07,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 08:44:07,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 08:44:07,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 08:44:07,764 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 08:44:07,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... [2019-01-12 08:44:07,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 08:44:07,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 08:44:07,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 08:44:07,788 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 08:44:07,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:44:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 08:44:07,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 08:44:08,087 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 08:44:08,088 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 08:44:08,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:44:08 BoogieIcfgContainer [2019-01-12 08:44:08,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 08:44:08,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 08:44:08,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 08:44:08,094 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 08:44:08,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 08:44:07" (1/3) ... [2019-01-12 08:44:08,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24140db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:44:08, skipping insertion in model container [2019-01-12 08:44:08,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:07" (2/3) ... [2019-01-12 08:44:08,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24140db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:44:08, skipping insertion in model container [2019-01-12 08:44:08,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:44:08" (3/3) ... [2019-01-12 08:44:08,099 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2019-01-12 08:44:08,110 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 08:44:08,119 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 08:44:08,136 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 08:44:08,170 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 08:44:08,171 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 08:44:08,171 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 08:44:08,171 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 08:44:08,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 08:44:08,172 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 08:44:08,172 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 08:44:08,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 08:44:08,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 08:44:08,189 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-01-12 08:44:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-12 08:44:08,196 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:44:08,197 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-12 08:44:08,200 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:44:08,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:44:08,206 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2019-01-12 08:44:08,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 08:44:08,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 08:44:08,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 08:44:08,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:44:08,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 08:44:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 08:44:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 08:44:08,339 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 08:44:08,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 08:44:08 BoogieIcfgContainer [2019-01-12 08:44:08,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 08:44:08,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 08:44:08,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 08:44:08,359 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 08:44:08,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:44:08" (3/4) ... [2019-01-12 08:44:08,364 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 08:44:08,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 08:44:08,366 INFO L168 Benchmark]: Toolchain (without parser) took 926.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -135.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:44:08,369 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-01-12 08:44:08,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.77 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 08:44:08,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:44:08,372 INFO L168 Benchmark]: Boogie Preprocessor took 24.01 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:44:08,373 INFO L168 Benchmark]: RCFGBuilder took 301.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-12 08:44:08,374 INFO L168 Benchmark]: TraceAbstraction took 267.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 08:44:08,375 INFO L168 Benchmark]: Witness Printer took 6.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:44:08,381 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 282.77 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 39.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.01 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 301.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 267.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 6.35 ms. Allocated memory is still 1.1 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 0.1.24-0ed9222-m [2019-01-12 08:44:10,844 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 08:44:10,845 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 08:44:10,857 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 08:44:10,858 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 08:44:10,859 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 08:44:10,860 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 08:44:10,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 08:44:10,863 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 08:44:10,864 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 08:44:10,865 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 08:44:10,866 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 08:44:10,867 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 08:44:10,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 08:44:10,869 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 08:44:10,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 08:44:10,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 08:44:10,873 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 08:44:10,876 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 08:44:10,880 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 08:44:10,883 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 08:44:10,890 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 08:44:10,894 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 08:44:10,894 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 08:44:10,894 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 08:44:10,895 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 08:44:10,896 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 08:44:10,897 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 08:44:10,900 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 08:44:10,903 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 08:44:10,903 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 08:44:10,906 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 08:44:10,906 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 08:44:10,906 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 08:44:10,907 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 08:44:10,908 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 08:44:10,908 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 08:44:10,935 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 08:44:10,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 08:44:10,942 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 08:44:10,943 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 08:44:10,943 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 08:44:10,943 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 08:44:10,943 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 08:44:10,943 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 08:44:10,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 08:44:10,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 08:44:10,944 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 08:44:10,944 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 08:44:10,944 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 08:44:10,945 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 08:44:10,946 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 08:44:10,946 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 08:44:10,946 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 08:44:10,946 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 08:44:10,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 08:44:10,947 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 08:44:10,947 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 08:44:10,947 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 08:44:10,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:44:10,948 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 08:44:10,949 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 08:44:10,949 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 08:44:10,949 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 08:44:10,950 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 08:44:10,950 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 08:44:10,950 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 08:44:10,950 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 [2019-01-12 08:44:10,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 08:44:11,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 08:44:11,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 08:44:11,021 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 08:44:11,022 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 08:44:11,022 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2019-01-12 08:44:11,079 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/630a20c7b/b010d81233354c19abf943fe288d10f1/FLAGc4c14e512 [2019-01-12 08:44:11,495 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 08:44:11,496 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2019-01-12 08:44:11,502 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/630a20c7b/b010d81233354c19abf943fe288d10f1/FLAGc4c14e512 [2019-01-12 08:44:11,865 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/630a20c7b/b010d81233354c19abf943fe288d10f1 [2019-01-12 08:44:11,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 08:44:11,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 08:44:11,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 08:44:11,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 08:44:11,876 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 08:44:11,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:44:11" (1/1) ... [2019-01-12 08:44:11,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2767e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:11, skipping insertion in model container [2019-01-12 08:44:11,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:44:11" (1/1) ... [2019-01-12 08:44:11,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 08:44:11,910 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 08:44:12,127 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:44:12,138 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 08:44:12,160 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:44:12,180 INFO L195 MainTranslator]: Completed translation [2019-01-12 08:44:12,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12 WrapperNode [2019-01-12 08:44:12,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 08:44:12,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 08:44:12,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 08:44:12,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 08:44:12,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 08:44:12,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 08:44:12,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 08:44:12,226 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 08:44:12,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... [2019-01-12 08:44:12,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 08:44:12,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 08:44:12,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 08:44:12,265 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 08:44:12,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:44:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 08:44:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 08:44:16,520 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 08:44:16,520 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 08:44:16,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:44:16 BoogieIcfgContainer [2019-01-12 08:44:16,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 08:44:16,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 08:44:16,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 08:44:16,527 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 08:44:16,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 08:44:11" (1/3) ... [2019-01-12 08:44:16,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4961bee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:44:16, skipping insertion in model container [2019-01-12 08:44:16,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:44:12" (2/3) ... [2019-01-12 08:44:16,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4961bee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:44:16, skipping insertion in model container [2019-01-12 08:44:16,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:44:16" (3/3) ... [2019-01-12 08:44:16,531 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2019-01-12 08:44:16,542 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 08:44:16,551 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 08:44:16,569 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 08:44:16,601 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 08:44:16,602 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 08:44:16,602 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 08:44:16,602 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 08:44:16,602 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 08:44:16,603 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 08:44:16,603 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 08:44:16,603 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 08:44:16,603 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 08:44:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-12 08:44:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 08:44:16,625 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:44:16,626 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 08:44:16,629 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:44:16,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:44:16,635 INFO L82 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2019-01-12 08:44:16,640 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 08:44:16,640 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 [2019-01-12 08:44:16,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:44:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 08:44:17,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 08:44:19,539 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 [2019-01-12 08:44:21,750 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 [2019-01-12 08:44:38,689 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) (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) is different from false [2019-01-12 08:44:50,155 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 [2019-01-12 08:44:52,381 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 [2019-01-12 08:44:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 08:44:52,386 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 08:44:52,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 08:44:52,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 08:44:52,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 08:44:52,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 08:44:52,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=4, Unknown=5, NotChecked=12, Total=30 [2019-01-12 08:44:52,426 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 6 states. [2019-01-12 08:44:57,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 08:44:57,108 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-12 08:44:57,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 08:44:57,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-01-12 08:44:57,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 08:44:57,173 INFO L225 Difference]: With dead ends: 19 [2019-01-12 08:44:57,173 INFO L226 Difference]: Without dead ends: 7 [2019-01-12 08:44:57,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=9, Invalid=4, Unknown=5, NotChecked=12, Total=30 [2019-01-12 08:44:57,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-12 08:44:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-12 08:44:57,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-12 08:44:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-01-12 08:44:57,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2019-01-12 08:44:57,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 08:44:57,214 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-01-12 08:44:57,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 08:44:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-01-12 08:44:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 08:44:57,214 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:44:57,214 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 08:44:57,216 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:44:57,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:44:57,216 INFO L82 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2019-01-12 08:44:57,217 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 08:44:57,217 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 [2019-01-12 08:44:57,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:44:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 08:44:57,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 08:44:59,851 WARN L838 $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 false [2019-01-12 08:45:02,210 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 [2019-01-12 08:45:04,276 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 [2019-01-12 08:45:20,956 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 [2019-01-12 08:45:31,339 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 [2019-01-12 08:45:33,405 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 [2019-01-12 08:45:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 08:45:33,407 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 08:45:33,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 08:45:33,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 08:45:33,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 08:45:33,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 08:45:33,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=3, Unknown=6, NotChecked=12, Total=30 [2019-01-12 08:45:33,423 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand 6 states. [2019-01-12 08:45:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 08:45:33,426 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-01-12 08:45:33,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 08:45:33,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-01-12 08:45:33,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 08:45:33,427 INFO L225 Difference]: With dead ends: 7 [2019-01-12 08:45:33,427 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 08:45:33,429 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=9, Invalid=3, Unknown=6, NotChecked=12, Total=30 [2019-01-12 08:45:33,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 08:45:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 08:45:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 08:45:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 08:45:33,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-01-12 08:45:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 08:45:33,431 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 08:45:33,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 08:45:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 08:45:33,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 08:45:33,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 08:45:33,486 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 08:45:33,487 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 08:45:33,487 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 08:45:33,487 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 08:45:33,487 INFO L451 ceAbstractionStarter]: At program point L23(lines 11 24) the Hoare annotation is: true [2019-01-12 08:45:33,487 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2019-01-12 08:45:33,488 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-01-12 08:45:33,489 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 20) no Hoare annotation was computed. [2019-01-12 08:45:33,489 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-01-12 08:45:33,489 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-01-12 08:45:33,489 INFO L451 ceAbstractionStarter]: At program point L9-3(line 9) the Hoare annotation is: true [2019-01-12 08:45:33,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 08:45:33 BoogieIcfgContainer [2019-01-12 08:45:33,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 08:45:33,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 08:45:33,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 08:45:33,496 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 08:45:33,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:44:16" (3/4) ... [2019-01-12 08:45:33,500 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 08:45:33,511 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-12 08:45:33,511 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 08:45:33,511 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-12 08:45:33,558 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 08:45:33,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 08:45:33,559 INFO L168 Benchmark]: Toolchain (without parser) took 81689.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.7 MB). Free memory was 952.7 MB in the beginning and 998.1 MB in the end (delta: -45.4 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-01-12 08:45:33,561 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-01-12 08:45:33,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.02 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 08:45:33,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.97 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:45:33,563 INFO L168 Benchmark]: Boogie Preprocessor took 38.42 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 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. [2019-01-12 08:45:33,564 INFO L168 Benchmark]: RCFGBuilder took 4257.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -116.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-12 08:45:33,565 INFO L168 Benchmark]: TraceAbstraction took 76972.12 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: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. [2019-01-12 08:45:33,567 INFO L168 Benchmark]: Witness Printer took 63.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 998.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-12 08:45:33,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 309.02 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 43.97 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.42 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 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 4257.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -116.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 76972.12 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: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 998.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. 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, 11 locations, 1 error locations. SAFE Result, 76.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 17 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 1.0s SatisfiabilityAnalysisTime, 70.8s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 6 QuantifiedInterpolants, 1865 SizeOfPredicates, 8 NumberOfNonLiveVariables, 24 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...