./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e96842f9a03cb3c7d57e4720c2380ee270a08502 .................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e96842f9a03cb3c7d57e4720c2380ee270a08502 .............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:40:30,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:30,646 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:30,661 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:30,662 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:30,663 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:30,665 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:30,667 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:30,669 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:30,670 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:30,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:30,672 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:30,673 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:30,674 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:30,676 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:30,677 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:30,678 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:30,680 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:30,683 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:30,685 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:30,686 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:30,688 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:30,691 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:30,691 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:30,691 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:30,692 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:30,694 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:30,695 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:30,696 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:30,698 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:30,698 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:30,699 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:30,700 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:30,700 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:30,701 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:30,702 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:30,703 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:40:30,720 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:30,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:30,721 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:30,721 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:30,723 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:30,726 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:30,726 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:30,726 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:30,726 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:30,727 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:40:30,727 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:30,727 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:30,727 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:30,727 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:30,727 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:30,728 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:30,728 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:30,728 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:30,728 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:30,728 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:30,728 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:30,732 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:30,732 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:30,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:30,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:30,733 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:30,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:30,733 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:40:30,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:30,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:40:30,733 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-28 17:40:30,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:30,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:30,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:30,834 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:30,834 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:30,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:30,900 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c47521d/f858382d15f845dba96b9f32727124e4/FLAG6a917f00a [2018-11-28 17:40:31,331 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:31,332 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:31,338 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c47521d/f858382d15f845dba96b9f32727124e4/FLAG6a917f00a [2018-11-28 17:40:31,695 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c47521d/f858382d15f845dba96b9f32727124e4 [2018-11-28 17:40:31,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:31,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:31,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:31,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:31,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:31,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:31,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a47e369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31, skipping insertion in model container [2018-11-28 17:40:31,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:31,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:31,739 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:31,931 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:31,937 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:31,955 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:31,972 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:31,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31 WrapperNode [2018-11-28 17:40:31,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:31,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:31,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:31,975 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:31,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:31,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:32,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:32,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:32,003 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:32,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... [2018-11-28 17:40:32,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:32,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:32,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:32,030 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:32,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:32,505 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:32,505 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:32,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:32 BoogieIcfgContainer [2018-11-28 17:40:32,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:32,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:32,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:32,512 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:32,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:31" (1/3) ... [2018-11-28 17:40:32,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bc8851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:32, skipping insertion in model container [2018-11-28 17:40:32,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:31" (2/3) ... [2018-11-28 17:40:32,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bc8851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:32, skipping insertion in model container [2018-11-28 17:40:32,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:32" (3/3) ... [2018-11-28 17:40:32,518 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:32,530 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:32,539 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:32,560 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:32,596 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:32,597 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:32,597 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:32,597 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:32,597 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:32,597 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:32,597 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:32,597 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:32,599 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:40:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:40:32,641 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:32,642 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:32,645 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:32,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:32,652 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:40:32,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:40:32,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:40:32,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:32,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:32,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:32,763 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:32,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:32 BoogieIcfgContainer [2018-11-28 17:40:32,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:32,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:32,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:32,791 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:32,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:32" (3/4) ... [2018-11-28 17:40:32,795 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:40:32,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:32,796 INFO L168 Benchmark]: Toolchain (without parser) took 1096.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:32,799 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:32,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.72 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:32,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.70 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:32,802 INFO L168 Benchmark]: Boogie Preprocessor took 27.15 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:32,803 INFO L168 Benchmark]: RCFGBuilder took 475.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:32,804 INFO L168 Benchmark]: TraceAbstraction took 282.50 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:32,805 INFO L168 Benchmark]: Witness Printer took 5.04 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. [2018-11-28 17:40:32,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.72 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.70 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.15 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 475.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 282.50 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.04 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: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e7f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z VAL [x=10000000] [L14] CALL __VERIFIER_assert(r == 2.f) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:40:35,242 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:35,244 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:35,262 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:35,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:35,267 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:35,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:35,272 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:35,274 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:35,276 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:35,279 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:35,280 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:35,282 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:35,285 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:35,293 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:35,295 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:35,299 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:35,300 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:35,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:35,309 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:35,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:35,316 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:35,322 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:35,324 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:35,324 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:35,325 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:35,326 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:35,331 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:35,332 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:35,332 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:35,334 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:35,335 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:35,335 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:35,338 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:35,339 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:35,340 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:35,340 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:40:35,366 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:35,367 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:35,368 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:35,368 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:35,369 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:35,370 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:35,370 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:35,371 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:35,371 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:35,371 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:35,371 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:35,371 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:35,371 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:35,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:35,373 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:40:35,373 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:40:35,373 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:35,374 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:35,374 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:35,374 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:35,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:35,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:35,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:35,375 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:35,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:35,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:35,377 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:35,377 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:35,377 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:40:35,379 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:35,380 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:40:35,381 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:40:35,381 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-28 17:40:35,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:35,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:35,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:35,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:35,445 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:35,446 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:35,510 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/378643f8f/dca45f594aa441ffaad3369710e34573/FLAG34f29cda7 [2018-11-28 17:40:35,948 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:35,948 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:35,955 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/378643f8f/dca45f594aa441ffaad3369710e34573/FLAG34f29cda7 [2018-11-28 17:40:36,314 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/378643f8f/dca45f594aa441ffaad3369710e34573 [2018-11-28 17:40:36,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:36,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:36,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:36,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:36,328 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:36,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1465e9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36, skipping insertion in model container [2018-11-28 17:40:36,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:36,361 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:36,575 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:36,589 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:36,610 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:36,632 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:36,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36 WrapperNode [2018-11-28 17:40:36,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:36,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:36,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:36,635 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:36,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:36,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:36,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:36,672 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:36,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... [2018-11-28 17:40:36,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:36,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:36,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:36,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:36,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:37,053 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:37,054 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:37,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:37 BoogieIcfgContainer [2018-11-28 17:40:37,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:37,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:37,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:37,062 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:37,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:36" (1/3) ... [2018-11-28 17:40:37,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63927e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:37, skipping insertion in model container [2018-11-28 17:40:37,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:36" (2/3) ... [2018-11-28 17:40:37,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63927e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:37, skipping insertion in model container [2018-11-28 17:40:37,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:37" (3/3) ... [2018-11-28 17:40:37,067 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:37,077 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:37,083 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:37,100 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:37,132 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:37,133 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:37,133 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:37,133 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:37,134 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:37,134 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:37,134 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:37,134 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:37,134 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:40:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:40:37,160 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:37,161 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:37,163 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:37,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:37,169 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:40:37,174 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:37,175 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:37,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:37,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:37,533 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 5 [2018-11-28 17:40:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:37,561 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:37,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:37,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 17:40:37,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 17:40:37,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 17:40:37,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:40:37,597 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-28 17:40:37,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:37,692 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-28 17:40:37,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 17:40:37,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 17:40:37,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:37,701 INFO L225 Difference]: With dead ends: 24 [2018-11-28 17:40:37,701 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:40:37,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:40:37,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:40:37,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:40:37,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:40:37,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:40:37,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-28 17:40:37,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:37,732 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:40:37,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 17:40:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:40:37,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:40:37,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:40:37,800 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:40:37,800 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:37,800 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:37,800 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:40:37,801 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:40:37,801 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:40:37,801 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 10000000.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 .cse1) (fp.sub roundNearestTiesToEven .cse0 .cse1))) main_~r~0) [2018-11-28 17:40:37,801 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-28 17:40:37,801 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 17:40:37,802 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-28 17:40:37,802 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-28 17:40:37,802 INFO L448 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-28 17:40:37,802 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-28 17:40:37,802 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-28 17:40:37,802 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-28 17:40:37,803 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-28 17:40:37,803 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-28 17:40:37,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:37 BoogieIcfgContainer [2018-11-28 17:40:37,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:37,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:37,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:37,806 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:37,807 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:37" (3/4) ... [2018-11-28 17:40:37,811 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:40:37,817 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:40:37,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:40:37,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 17:40:37,822 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 17:40:37,823 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 17:40:37,823 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:40:37,823 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:40:37,862 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:40:37,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:37,863 INFO L168 Benchmark]: Toolchain (without parser) took 1543.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,864 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:37,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.09 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.23 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:37,866 INFO L168 Benchmark]: Boogie Preprocessor took 36.51 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:37,867 INFO L168 Benchmark]: RCFGBuilder took 346.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,867 INFO L168 Benchmark]: TraceAbstraction took 749.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,868 INFO L168 Benchmark]: Witness Printer took 56.53 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,873 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.09 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 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 36.23 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.51 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 346.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 749.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 56.53 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...