./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.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 eb63ba8209b4429912d8171cad5a1e8773f9c13b ........................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.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 eb63ba8209b4429912d8171cad5a1e8773f9c13b ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:38:26,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:38:26,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:38:26,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:38:26,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:38:26,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:38:26,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:38:26,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:38:26,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:38:26,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:38:26,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:38:26,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:38:26,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:38:26,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:38:26,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:38:26,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:38:26,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:38:26,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:38:26,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:38:26,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:38:26,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:38:26,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:38:26,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:38:26,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:38:26,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:38:26,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:38:26,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:38:26,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:38:26,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:38:26,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:38:26,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:38:26,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:38:26,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:38:26,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:38:26,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:38:26,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:38:26,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:38:26,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:38:26,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:38:26,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:38:26,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:38:26,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:38:26,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:38:26,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:38:26,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:38:26,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:38:26,741 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:38:26,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:38:26,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:38:26,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:38:26,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:38:26,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:38:26,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:38:26,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:38:26,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:38:26,747 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:38:26,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:38:26,747 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:38:26,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:38:26,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:38:26,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:38:26,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:38:26,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:38:26,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:38:26,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:38:26,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:38:26,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:38:26,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:38:26,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:38:26,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:38:26,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:38:26,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> eb63ba8209b4429912d8171cad5a1e8773f9c13b [2019-11-28 16:38:27,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:38:27,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:38:27,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:38:27,090 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:38:27,092 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:38:27,093 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-11-28 16:38:27,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e77e48a/dbe463341acd4a2f9f2628bb93cda2e0/FLAGa90f5c202 [2019-11-28 16:38:27,630 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:38:27,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-11-28 16:38:27,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e77e48a/dbe463341acd4a2f9f2628bb93cda2e0/FLAGa90f5c202 [2019-11-28 16:38:28,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e77e48a/dbe463341acd4a2f9f2628bb93cda2e0 [2019-11-28 16:38:28,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:38:28,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:38:28,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:38:28,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:38:28,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:38:28,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477caf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28, skipping insertion in model container [2019-11-28 16:38:28,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:38:28,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:38:28,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:38:28,197 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:38:28,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:38:28,231 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:38:28,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28 WrapperNode [2019-11-28 16:38:28,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:38:28,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:38:28,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:38:28,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:38:28,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:38:28,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:38:28,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:38:28,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:38:28,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... [2019-11-28 16:38:28,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:38:28,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:38:28,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:38:28,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:38:28,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:38:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:38:28,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:38:28,514 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:38:28,514 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 16:38:28,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:28 BoogieIcfgContainer [2019-11-28 16:38:28,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:38:28,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:38:28,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:38:28,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:38:28,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:38:28" (1/3) ... [2019-11-28 16:38:28,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa6340d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:28, skipping insertion in model container [2019-11-28 16:38:28,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:28" (2/3) ... [2019-11-28 16:38:28,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa6340d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:28, skipping insertion in model container [2019-11-28 16:38:28,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:28" (3/3) ... [2019-11-28 16:38:28,524 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2019-11-28 16:38:28,532 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:38:28,538 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:38:28,549 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:38:28,575 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:38:28,576 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:38:28,576 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:38:28,576 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:38:28,576 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:38:28,577 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:38:28,577 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:38:28,577 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:38:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-28 16:38:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 16:38:28,599 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:38:28,600 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 16:38:28,601 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:38:28,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:38:28,607 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-28 16:38:28,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:38:28,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360915467] [2019-11-28 16:38:28,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:38:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:38:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:38:28,701 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:38:28,702 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:38:28,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:38:28 BoogieIcfgContainer [2019-11-28 16:38:28,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:38:28,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:38:28,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:38:28,716 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:38:28,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:28" (3/4) ... [2019-11-28 16:38:28,721 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:38:28,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:38:28,724 INFO L168 Benchmark]: Toolchain (without parser) took 711.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -94.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:38:28,725 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:38:28,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.24 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:28,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:28,729 INFO L168 Benchmark]: Boogie Preprocessor took 21.53 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. [2019-11-28 16:38:28,729 INFO L168 Benchmark]: RCFGBuilder took 168.37 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:28,730 INFO L168 Benchmark]: TraceAbstraction took 198.51 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:28,731 INFO L168 Benchmark]: Witness Printer took 5.49 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. [2019-11-28 16:38:28,736 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 219.24 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 93.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.53 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. * RCFGBuilder took 168.37 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 198.51 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.49 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-11-28 16:38:30,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:38:30,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:38:30,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:38:30,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:38:30,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:38:30,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:38:30,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:38:30,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:38:30,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:38:30,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:38:30,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:38:30,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:38:30,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:38:30,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:38:30,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:38:30,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:38:30,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:38:30,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:38:30,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:38:30,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:38:30,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:38:30,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:38:30,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:38:30,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:38:30,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:38:30,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:38:30,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:38:30,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:38:30,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:38:30,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:38:30,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:38:30,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:38:30,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:38:30,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:38:30,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:38:30,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:38:30,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:38:30,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:38:30,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:38:30,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:38:30,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:38:30,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:38:30,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:38:30,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:38:30,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:38:30,894 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:38:30,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:38:30,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:38:30,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:38:30,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:38:30,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:38:30,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:38:30,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:38:30,897 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:38:30,897 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:38:30,897 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:38:30,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:38:30,898 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:38:30,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:38:30,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:38:30,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:38:30,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:38:30,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:38:30,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:38:30,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:38:30,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:38:30,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:38:30,901 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:38:30,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:38:30,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:38:30,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:38:30,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:38:30,902 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> eb63ba8209b4429912d8171cad5a1e8773f9c13b [2019-11-28 16:38:31,231 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:38:31,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:38:31,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:38:31,254 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:38:31,255 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:38:31,256 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-11-28 16:38:31,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed30d428/0f123c5819834f649347b1ed8f42e785/FLAG8120703bb [2019-11-28 16:38:31,841 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:38:31,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-11-28 16:38:31,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed30d428/0f123c5819834f649347b1ed8f42e785/FLAG8120703bb [2019-11-28 16:38:32,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed30d428/0f123c5819834f649347b1ed8f42e785 [2019-11-28 16:38:32,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:38:32,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:38:32,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:38:32,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:38:32,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:38:32,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6876a529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32, skipping insertion in model container [2019-11-28 16:38:32,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:38:32,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:38:32,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:38:32,440 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:38:32,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:38:32,476 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:38:32,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32 WrapperNode [2019-11-28 16:38:32,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:38:32,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:38:32,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:38:32,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:38:32,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:38:32,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:38:32,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:38:32,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:38:32,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2019-11-28 16:38:32,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:38:32,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:38:32,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:38:32,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:38:32,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:38:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:38:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:38:32,858 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:38:32,859 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 16:38:32,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:32 BoogieIcfgContainer [2019-11-28 16:38:32,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:38:32,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:38:32,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:38:32,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:38:32,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:38:32" (1/3) ... [2019-11-28 16:38:32,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40742ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:32, skipping insertion in model container [2019-11-28 16:38:32,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (2/3) ... [2019-11-28 16:38:32,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40742ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:32, skipping insertion in model container [2019-11-28 16:38:32,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:32" (3/3) ... [2019-11-28 16:38:32,870 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2019-11-28 16:38:32,880 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:38:32,888 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:38:32,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:38:32,924 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:38:32,925 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:38:32,925 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:38:32,925 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:38:32,925 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:38:32,925 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:38:32,926 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:38:32,926 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:38:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-28 16:38:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 16:38:32,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:38:32,946 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 16:38:32,947 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:38:32,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:38:32,953 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-28 16:38:32,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:38:32,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126364956] [2019-11-28 16:38:32,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-28 16:38:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:38:33,035 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 16:38:33,041 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:38:33,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:33,169 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:38:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:33,701 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126364956] [2019-11-28 16:38:33,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:38:33,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-28 16:38:33,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888985207] [2019-11-28 16:38:33,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 16:38:33,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:38:33,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 16:38:33,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 16:38:33,726 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 6 states. [2019-11-28 16:38:33,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:38:33,805 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-11-28 16:38:33,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:38:33,809 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-28 16:38:33,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:38:33,817 INFO L225 Difference]: With dead ends: 11 [2019-11-28 16:38:33,817 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:38:33,821 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 16:38:33,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:38:33,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:38:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:38:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:38:33,850 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-28 16:38:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:38:33,850 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:38:33,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 16:38:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:38:33,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:38:34,065 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:38:34,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:38:34,072 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:38:34,072 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:38:34,072 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:38:34,072 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:38:34,072 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-28 16:38:34,073 INFO L246 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-28 16:38:34,073 INFO L246 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-11-28 16:38:34,073 INFO L246 CegarLoopResult]: For program point L3(lines 3 9) no Hoare annotation was computed. [2019-11-28 16:38:34,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:38:34 BoogieIcfgContainer [2019-11-28 16:38:34,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:38:34,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:38:34,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:38:34,078 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:38:34,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:32" (3/4) ... [2019-11-28 16:38:34,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:38:34,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 16:38:34,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 16:38:34,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:38:34,125 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:38:34,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:38:34,128 INFO L168 Benchmark]: Toolchain (without parser) took 1944.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -127.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:34,129 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:38:34,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.21 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:34,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -194.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:34,133 INFO L168 Benchmark]: Boogie Preprocessor took 26.18 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:34,134 INFO L168 Benchmark]: RCFGBuilder took 252.70 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:34,134 INFO L168 Benchmark]: TraceAbstraction took 1216.34 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:34,135 INFO L168 Benchmark]: Witness Printer took 47.56 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:34,142 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.21 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 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 102.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -194.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.18 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 252.70 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1216.34 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.56 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...