./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_float_inexact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/float-benchs/addsub_float_inexact.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 ................................................................................................................................................................................................................................ 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 -Xmx15G -Xms4m -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/float-benchs/addsub_float_inexact.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:16:22,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:16:22,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:16:22,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:16:22,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:16:22,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:16:22,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:16:22,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:16:22,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:16:22,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:16:22,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:16:22,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:16:22,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:16:22,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:16:22,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:16:22,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:16:22,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:16:22,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:16:22,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:16:22,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:16:22,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:16:22,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:16:22,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:16:22,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:16:22,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:16:22,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:16:22,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:16:22,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:16:22,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:16:22,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:16:22,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:16:22,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:16:22,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:16:22,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:16:22,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:16:22,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:16:22,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:16:22,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:16:22,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:16:22,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:16:22,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:16:22,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:16:22,756 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:16:22,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:16:22,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:16:22,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:16:22,758 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:16:22,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:16:22,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:16:22,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:16:22,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:16:22,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:16:22,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:16:22,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:16:22,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:16:22,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:16:22,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:16:22,763 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:16:22,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:16:22,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:16:22,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:16:22,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:16:22,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:16:22,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:16:22,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:16:22,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:16:22,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:16:22,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:16:22,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:16:22,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:16:22,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:16:22,769 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(reach_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 -> 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 [2020-10-20 00:16:22,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:16:22,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:16:23,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:16:23,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:16:23,004 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:16:23,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-10-20 00:16:23,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9927c968/0c70eccaa48a4328b3edab8dd0feb1ee/FLAG7bb65fb78 [2020-10-20 00:16:23,478 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:16:23,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-10-20 00:16:23,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9927c968/0c70eccaa48a4328b3edab8dd0feb1ee/FLAG7bb65fb78 [2020-10-20 00:16:23,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9927c968/0c70eccaa48a4328b3edab8dd0feb1ee [2020-10-20 00:16:23,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:16:23,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:16:23,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:23,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:16:23,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:16:23,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:23" (1/1) ... [2020-10-20 00:16:23,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43495748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:23, skipping insertion in model container [2020-10-20 00:16:23,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:23" (1/1) ... [2020-10-20 00:16:23,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:16:23,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:16:24,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:24,273 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:16:24,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:24,309 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:16:24,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24 WrapperNode [2020-10-20 00:16:24,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:24,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:24,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:16:24,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:16:24,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:24,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:16:24,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:16:24,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:16:24,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (1/1) ... [2020-10-20 00:16:24,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:16:24,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:16:24,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:16:24,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:16:24,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (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 [2020-10-20 00:16:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:16:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:16:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:16:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:16:24,657 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:16:24,658 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:16:24,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:24 BoogieIcfgContainer [2020-10-20 00:16:24,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:16:24,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:16:24,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:16:24,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:16:24,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:16:23" (1/3) ... [2020-10-20 00:16:24,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461f68d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:24, skipping insertion in model container [2020-10-20 00:16:24,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:24" (2/3) ... [2020-10-20 00:16:24,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461f68d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:24, skipping insertion in model container [2020-10-20 00:16:24,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:24" (3/3) ... [2020-10-20 00:16:24,696 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2020-10-20 00:16:24,717 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:16:24,725 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:16:24,739 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:16:24,766 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:16:24,766 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:16:24,766 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:16:24,767 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:16:24,767 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:16:24,767 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:16:24,767 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:16:24,767 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:16:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:16:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:16:24,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:24,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:16:24,786 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:24,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:24,791 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-20 00:16:24,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:16:24,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353636451] [2020-10-20 00:16:24,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:16:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:16:24,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:16:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:16:24,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:16:24,948 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:16:24,949 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:16:24,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:16:24,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:16:24 BoogieIcfgContainer [2020-10-20 00:16:24,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:16:24,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:16:24,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:16:24,973 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:16:24,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:24" (3/4) ... [2020-10-20 00:16:24,977 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:16:24,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:16:24,980 INFO L168 Benchmark]: Toolchain (without parser) took 1069.93 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 12.9 MB in the beginning and 22.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:24,981 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 33.6 MB. Free memory was 19.1 MB in the beginning and 19.0 MB in the end (delta: 31.5 kB). Peak memory consumption was 31.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:24,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.24 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 11.9 MB in the beginning and 25.4 MB in the end (delta: -13.5 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:24,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.97 ms. Allocated memory is still 44.6 MB. Free memory was 25.4 MB in the beginning and 23.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:24,985 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 ms. Allocated memory is still 44.6 MB. Free memory was 23.6 MB in the beginning and 22.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:24,986 INFO L168 Benchmark]: RCFGBuilder took 295.08 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 22.4 MB in the beginning and 21.7 MB in the end (delta: 760.1 kB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:24,987 INFO L168 Benchmark]: TraceAbstraction took 298.71 ms. Allocated memory was 45.1 MB in the beginning and 46.1 MB in the end (delta: 1.0 MB). Free memory was 21.2 MB in the beginning and 22.6 MB in the end (delta: -1.4 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:16:24,988 INFO L168 Benchmark]: Witness Printer took 4.36 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 22.3 MB in the end (delta: 246.3 kB). Peak memory consumption was 246.3 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:24,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 33.6 MB. Free memory was 19.1 MB in the beginning and 19.0 MB in the end (delta: 31.5 kB). Peak memory consumption was 31.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 396.24 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 11.9 MB in the beginning and 25.4 MB in the end (delta: -13.5 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 34.97 ms. Allocated memory is still 44.6 MB. Free memory was 25.4 MB in the beginning and 23.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 18.47 ms. Allocated memory is still 44.6 MB. Free memory was 23.6 MB in the beginning and 22.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 295.08 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 22.4 MB in the beginning and 21.7 MB in the end (delta: 760.1 kB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 298.71 ms. Allocated memory was 45.1 MB in the beginning and 46.1 MB in the end (delta: 1.0 MB). Free memory was 21.2 MB in the beginning and 22.6 MB in the end (delta: -1.4 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 4.36 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 22.3 MB in the end (delta: 246.3 kB). Peak memory consumption was 246.3 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_float_inexact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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, ACCELERATED_INTERPOLATION: 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 0.1.25-9a8b2e8 [2020-10-20 00:16:27,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:16:27,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:16:27,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:16:27,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:16:27,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:16:27,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:16:27,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:16:27,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:16:27,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:16:27,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:16:27,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:16:27,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:16:27,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:16:27,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:16:27,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:16:27,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:16:27,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:16:27,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:16:27,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:16:27,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:16:27,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:16:27,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:16:27,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:16:27,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:16:27,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:16:27,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:16:27,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:16:27,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:16:27,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:16:27,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:16:27,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:16:27,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:16:27,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:16:27,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:16:27,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:16:27,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:16:27,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:16:27,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:16:27,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:16:27,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:16:27,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:16:27,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:16:27,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:16:27,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:16:27,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:16:27,314 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:16:27,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:16:27,314 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:16:27,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:16:27,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:16:27,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:16:27,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:16:27,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:16:27,316 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:16:27,316 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:16:27,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:16:27,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:16:27,317 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:16:27,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:16:27,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:16:27,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:16:27,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:16:27,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:16:27,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:16:27,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:16:27,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:16:27,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:16:27,319 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:16:27,319 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:16:27,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:16:27,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:16:27,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:16:27,320 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(reach_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 -> 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 [2020-10-20 00:16:27,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:16:27,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:16:27,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:16:27,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:16:27,519 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:16:27,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-10-20 00:16:27,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a82ee9b/9e6c75c7ce8e4cd2ab1e7b28c555aa72/FLAG07ffbaa3a [2020-10-20 00:16:28,035 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:16:28,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-10-20 00:16:28,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a82ee9b/9e6c75c7ce8e4cd2ab1e7b28c555aa72/FLAG07ffbaa3a [2020-10-20 00:16:28,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a82ee9b/9e6c75c7ce8e4cd2ab1e7b28c555aa72 [2020-10-20 00:16:28,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:16:28,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:16:28,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:28,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:16:28,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:16:28,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a83e3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28, skipping insertion in model container [2020-10-20 00:16:28,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:16:28,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:16:28,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:28,790 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:16:28,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:28,823 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:16:28,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28 WrapperNode [2020-10-20 00:16:28,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:28,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:28,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:16:28,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:16:28,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:28,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:16:28,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:16:28,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:16:28,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (1/1) ... [2020-10-20 00:16:28,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:16:28,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:16:28,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:16:28,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:16:28,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (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 [2020-10-20 00:16:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:16:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:16:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:16:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:16:29,305 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:16:29,305 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:16:29,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:29 BoogieIcfgContainer [2020-10-20 00:16:29,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:16:29,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:16:29,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:16:29,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:16:29,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:16:28" (1/3) ... [2020-10-20 00:16:29,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a027952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:29, skipping insertion in model container [2020-10-20 00:16:29,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:28" (2/3) ... [2020-10-20 00:16:29,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a027952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:29, skipping insertion in model container [2020-10-20 00:16:29,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:29" (3/3) ... [2020-10-20 00:16:29,316 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2020-10-20 00:16:29,328 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:16:29,334 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:16:29,349 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:16:29,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:16:29,369 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:16:29,369 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:16:29,370 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:16:29,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:16:29,370 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:16:29,370 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:16:29,371 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:16:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:16:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:16:29,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:29,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:16:29,388 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:29,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:29,393 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-20 00:16:29,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:16:29,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833154478] [2020-10-20 00:16:29,404 INFO L95 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 [2020-10-20 00:16:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:29,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:16:29,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:16:29,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:16:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:16:30,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833154478] [2020-10-20 00:16:30,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:16:30,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:16:30,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72973245] [2020-10-20 00:16:30,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:16:30,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:16:30,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:16:30,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:16:30,035 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-20 00:16:30,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:16:30,215 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-20 00:16:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:16:30,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-10-20 00:16:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:16:30,231 INFO L225 Difference]: With dead ends: 14 [2020-10-20 00:16:30,232 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:16:30,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:16:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:16:30,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:16:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:16:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:16:30,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-20 00:16:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:16:30,261 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:16:30,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:16:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:16:30,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:16:30,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:16:30,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:16:30,541 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:16:30,541 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:16:30,541 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:16:30,541 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:16:30,541 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:16:30,542 INFO L270 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-10-20 00:16:30,542 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-20 00:16:30,542 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-20 00:16:30,542 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:16:30,542 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-10-20 00:16:30,551 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:16:30,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:16:30,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,564 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:16:30,566 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:16:30,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:16:30 BoogieIcfgContainer [2020-10-20 00:16:30,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:16:30,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:16:30,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:16:30,580 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:16:30,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:29" (3/4) ... [2020-10-20 00:16:30,586 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:16:30,602 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:16:30,603 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 00:16:30,603 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 00:16:30,604 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:16:30,647 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:16:30,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:16:30,650 INFO L168 Benchmark]: Toolchain (without parser) took 2169.18 ms. Allocated memory was 36.2 MB in the beginning and 46.7 MB in the end (delta: 10.5 MB). Free memory was 19.8 MB in the beginning and 25.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,651 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 33.6 MB. Free memory was 11.8 MB in the beginning and 11.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.76 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 18.9 MB in the beginning and 25.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.67 ms. Allocated memory is still 43.5 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,654 INFO L168 Benchmark]: Boogie Preprocessor took 26.71 ms. Allocated memory is still 43.5 MB. Free memory was 23.6 MB in the beginning and 22.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,655 INFO L168 Benchmark]: RCFGBuilder took 423.91 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.2 MB in the beginning and 23.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,656 INFO L168 Benchmark]: TraceAbstraction took 1270.30 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 22.9 MB in the beginning and 27.9 MB in the end (delta: -5.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,657 INFO L168 Benchmark]: Witness Printer took 68.89 ms. Allocated memory is still 46.7 MB. Free memory was 27.9 MB in the beginning and 25.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:30,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 33.6 MB. Free memory was 11.8 MB in the beginning and 11.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 336.76 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 18.9 MB in the beginning and 25.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 31.67 ms. Allocated memory is still 43.5 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.71 ms. Allocated memory is still 43.5 MB. Free memory was 23.6 MB in the beginning and 22.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 423.91 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.2 MB in the beginning and 23.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1270.30 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 22.9 MB in the beginning and 27.9 MB in the end (delta: -5.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. * Witness Printer took 68.89 ms. Allocated memory is still 46.7 MB. Free memory was 27.9 MB in the beginning and 25.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 8]: Loop Invariant [2020-10-20 00:16:30,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:16:30,680 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2020-10-20 00:16:30,681 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:16:30,682 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:16:30,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 7 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...