./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/filter2_iterated.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_1.5.800.v20200727-1323.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/filter2_iterated.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 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:49:24,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:49:24,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:49:24,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:49:24,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:49:24,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:49:24,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:49:24,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:49:24,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:49:24,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:49:24,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:49:24,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:49:24,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:49:24,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:49:24,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:49:24,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:49:24,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:49:24,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:49:24,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:49:24,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:49:24,816 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:49:24,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:49:24,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:49:24,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:49:24,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:49:24,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:49:24,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:49:24,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:49:24,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:49:24,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:49:24,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:49:24,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:49:24,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:49:24,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:49:24,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:49:24,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:49:24,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:49:24,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:49:24,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:49:24,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:49:24,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:49:24,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:49:24,834 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 13:49:24,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:49:24,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:49:24,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:49:24,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:49:24,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:49:24,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:49:24,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:49:24,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:49:24,865 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:49:24,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:49:24,866 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:49:24,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 13:49:24,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:49:24,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:49:24,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:49:24,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:49:24,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:49:24,868 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:49:24,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:49:24,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:49:24,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:49:24,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:49:24,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:49:24,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:49:24,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:49:24,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:49:24,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:49:24,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:49:24,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 13:49:24,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 13:49:24,871 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:49:24,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:49:24,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:49:24,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 [2022-07-22 13:49:25,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:49:25,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:49:25,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:49:25,152 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:49:25,153 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:49:25,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2022-07-22 13:49:25,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33fa1084/71ae0712b37848b6958e1ce6ce201442/FLAGd2e77c9c0 [2022-07-22 13:49:25,593 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:49:25,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2022-07-22 13:49:25,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33fa1084/71ae0712b37848b6958e1ce6ce201442/FLAGd2e77c9c0 [2022-07-22 13:49:25,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33fa1084/71ae0712b37848b6958e1ce6ce201442 [2022-07-22 13:49:25,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:49:25,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:49:25,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:49:25,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:49:25,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:49:25,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2b137e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25, skipping insertion in model container [2022-07-22 13:49:25,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:49:25,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:49:25,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2022-07-22 13:49:25,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:49:25,876 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:49:25,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2022-07-22 13:49:25,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:49:25,918 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:49:25,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25 WrapperNode [2022-07-22 13:49:25,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:49:25,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:49:25,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:49:25,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:49:25,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,955 INFO L137 Inliner]: procedures = 17, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 109 [2022-07-22 13:49:25,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:49:25,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:49:25,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:49:25,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:49:25,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:49:25,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:49:25,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:49:25,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:49:25,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (1/1) ... [2022-07-22 13:49:25,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:49:26,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:49:26,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 13:49:26,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 13:49:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:49:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 13:49:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-22 13:49:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-22 13:49:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:49:26,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:49:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-22 13:49:26,131 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:49:26,132 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:49:26,359 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:49:26,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:49:26,365 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 13:49:26,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:49:26 BoogieIcfgContainer [2022-07-22 13:49:26,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:49:26,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:49:26,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:49:26,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:49:26,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:49:25" (1/3) ... [2022-07-22 13:49:26,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3639757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:49:26, skipping insertion in model container [2022-07-22 13:49:26,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:25" (2/3) ... [2022-07-22 13:49:26,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3639757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:49:26, skipping insertion in model container [2022-07-22 13:49:26,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:49:26" (3/3) ... [2022-07-22 13:49:26,389 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_iterated.c [2022-07-22 13:49:26,401 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:49:26,401 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:49:26,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:49:26,451 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7092b5b7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1640b138 [2022-07-22 13:49:26,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:49:26,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:49:26,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:49:26,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:49:26,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:49:26,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:49:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:49:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash 304794067, now seen corresponding path program 1 times [2022-07-22 13:49:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:49:26,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711014455] [2022-07-22 13:49:26,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:49:26,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:49:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:49:26,586 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:49:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:49:26,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 13:49:26,634 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:49:26,635 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:49:26,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 13:49:26,642 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 13:49:26,645 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:49:26,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:49:26 BoogieIcfgContainer [2022-07-22 13:49:26,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:49:26,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:49:26,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:49:26,679 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:49:26,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:49:26" (3/4) ... [2022-07-22 13:49:26,683 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 13:49:26,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:49:26,684 INFO L158 Benchmark]: Toolchain (without parser) took 1061.64ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 54.9MB in the beginning and 76.9MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:49:26,684 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 90.2MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 84.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:49:26,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.33ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 62.8MB in the end (delta: -8.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 13:49:26,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.82ms. Allocated memory is still 90.2MB. Free memory was 62.6MB in the beginning and 60.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:49:26,686 INFO L158 Benchmark]: Boogie Preprocessor took 33.68ms. Allocated memory is still 90.2MB. Free memory was 60.7MB in the beginning and 59.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:49:26,687 INFO L158 Benchmark]: RCFGBuilder took 375.98ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 45.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 13:49:26,687 INFO L158 Benchmark]: TraceAbstraction took 300.00ms. Allocated memory is still 113.2MB. Free memory was 91.4MB in the beginning and 77.4MB in the end (delta: 14.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2022-07-22 13:49:26,689 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 113.2MB. Free memory was 77.4MB in the beginning and 76.9MB in the end (delta: 498.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:49:26,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 90.2MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 84.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.33ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 62.8MB in the end (delta: -8.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.82ms. Allocated memory is still 90.2MB. Free memory was 62.6MB in the beginning and 60.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.68ms. Allocated memory is still 90.2MB. Free memory was 60.7MB in the beginning and 59.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.98ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 45.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 300.00ms. Allocated memory is still 113.2MB. Free memory was 91.4MB in the beginning and 77.4MB in the end (delta: 14.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 113.2MB. Free memory was 77.4MB in the beginning and 76.9MB in the end (delta: 498.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of to_real at line 58, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L13] BOOLEAN INIT1, INIT2; [L14] float X, P; [L18] static float E[2], S[2]; [L38] static float E2[2], S2[2]; VAL [E={4:0}, E2={6:0}, INIT1=0, INIT2=0, P=0, S={5:0}, S2={7:0}, X=0] [L58] X = 0 [L59] INIT1 = TRUE [L60] INIT2 = TRUE VAL [E={4:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={7:0}] [L61] COND TRUE \read(TRUE) [L62] X = 0.98*X + 85. VAL [E={4:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={7:0}] [L63] COND FALSE !(X >= -400. && X <= 400.) VAL [E={4:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={7:0}] [L68] COND FALSE !(X >= -800. && X <= 800.) VAL [E={4:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={7:0}] [L74] CALL __VERIFIER_assert(X >= -1155. && X <= 4251.) [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, E={4:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={7:0}] [L9] reach_error() VAL [\old(cond)=0, cond=0, E={4:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 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, 8 NumberOfCodeBlocks, 8 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 [2022-07-22 13:49:26,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_1.5.800.v20200727-1323.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/filter2_iterated.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 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:49:28,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:49:28,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:49:28,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:49:28,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:49:28,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:49:28,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:49:28,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:49:28,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:49:28,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:49:28,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:49:28,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:49:28,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:49:28,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:49:28,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:49:28,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:49:28,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:49:28,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:49:28,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:49:28,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:49:28,733 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:49:28,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:49:28,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:49:28,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:49:28,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:49:28,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:49:28,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:49:28,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:49:28,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:49:28,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:49:28,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:49:28,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:49:28,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:49:28,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:49:28,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:49:28,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:49:28,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:49:28,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:49:28,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:49:28,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:49:28,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:49:28,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:49:28,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 13:49:28,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:49:28,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:49:28,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:49:28,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:49:28,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:49:28,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:49:28,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:49:28,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:49:28,772 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:49:28,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:49:28,772 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:49:28,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:49:28,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:49:28,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:49:28,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:49:28,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:49:28,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 13:49:28,782 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 13:49:28,782 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 13:49:28,782 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:49:28,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:49:28,786 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:49:28,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:49:28,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:49:28,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:49:28,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:49:28,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:49:28,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:49:28,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:49:28,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:49:28,788 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 13:49:28,788 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 13:49:28,788 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:49:28,788 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:49:28,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:49:28,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 13:49:28,789 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 [2022-07-22 13:49:29,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:49:29,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:49:29,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:49:29,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:49:29,107 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:49:29,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2022-07-22 13:49:29,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75b4f83a/3bc7f3d0967f45eeb649d61a5f465785/FLAGc4e956dd6 [2022-07-22 13:49:29,678 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:49:29,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2022-07-22 13:49:29,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75b4f83a/3bc7f3d0967f45eeb649d61a5f465785/FLAGc4e956dd6 [2022-07-22 13:49:30,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75b4f83a/3bc7f3d0967f45eeb649d61a5f465785 [2022-07-22 13:49:30,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:49:30,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:49:30,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:49:30,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:49:30,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:49:30,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a050829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30, skipping insertion in model container [2022-07-22 13:49:30,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:49:30,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:49:30,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2022-07-22 13:49:30,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:49:30,230 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:49:30,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2022-07-22 13:49:30,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:49:30,268 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:49:30,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30 WrapperNode [2022-07-22 13:49:30,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:49:30,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:49:30,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:49:30,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:49:30,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,306 INFO L137 Inliner]: procedures = 18, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2022-07-22 13:49:30,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:49:30,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:49:30,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:49:30,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:49:30,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:49:30,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:49:30,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:49:30,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:49:30,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:49:30" (1/1) ... [2022-07-22 13:49:30,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:49:30,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:49:30,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 13:49:30,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 13:49:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:49:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-22 13:49:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 13:49:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-22 13:49:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:49:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:49:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-22 13:49:30,554 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:49:30,563 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:49:45,795 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-07-22 13:49:45,797 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.constructTransFormula(Statements2TransFormula.java:213) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.getTransFormula(Statements2TransFormula.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:718) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:731) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 25 more [2022-07-22 13:49:45,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-07-22 13:49:45,803 INFO L158 Benchmark]: Toolchain (without parser) took 15738.76ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.5MB in the beginning and 39.4MB in the end (delta: -9.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-07-22 13:49:45,804 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:49:45,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.26ms. Allocated memory is still 52.4MB. Free memory was 29.2MB in the beginning and 30.7MB in the end (delta: -1.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-07-22 13:49:45,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.06ms. Allocated memory is still 52.4MB. Free memory was 30.7MB in the beginning and 28.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:49:45,806 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 52.4MB. Free memory was 28.6MB in the beginning and 26.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:49:45,807 INFO L158 Benchmark]: RCFGBuilder took 15463.97ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 26.7MB in the beginning and 39.4MB in the end (delta: -12.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-07-22 13:49:45,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.26ms. Allocated memory is still 52.4MB. Free memory was 29.2MB in the beginning and 30.7MB in the end (delta: -1.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.06ms. Allocated memory is still 52.4MB. Free memory was 30.7MB in the beginning and 28.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 52.4MB. Free memory was 28.6MB in the beginning and 26.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 15463.97ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 26.7MB in the beginning and 39.4MB in the end (delta: -12.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")