./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:13:06,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:13:06,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:13:06,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:13:06,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:13:06,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:13:06,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:13:06,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:13:06,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:13:06,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:13:06,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:13:06,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:13:06,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:13:06,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:13:06,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:13:06,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:13:06,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:13:06,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:13:06,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:13:06,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:13:06,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:13:06,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:13:06,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:13:06,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:13:06,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:13:06,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:13:06,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:13:06,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:13:06,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:13:06,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:13:06,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:13:06,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:13:06,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:13:06,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:13:06,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:13:06,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:13:06,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:13:06,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:13:06,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:13:06,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:13:06,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:13:06,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 13:13:06,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:13:06,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:13:06,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:13:06,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:13:06,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:13:06,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:13:06,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:13:06,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:13:06,249 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:13:06,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:13:06,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:13:06,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 13:13:06,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:13:06,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:13:06,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:13:06,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:13:06,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:13:06,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:13:06,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:13:06,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:13:06,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:13:06,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:13:06,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:13:06,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:13:06,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:13:06,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:13:06,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:13:06,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:13:06,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 13:13:06,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 13:13:06,254 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:13:06,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:13:06,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:13:06,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:13:06,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 [2021-12-14 13:13:06,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:13:06,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:13:06,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:13:06,471 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:13:06,472 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:13:06,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-12-14 13:13:06,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa828c472/13f6fa89483c44c08eb09de3d3bd4620/FLAGbb068deef [2021-12-14 13:13:06,865 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:13:06,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-12-14 13:13:06,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa828c472/13f6fa89483c44c08eb09de3d3bd4620/FLAGbb068deef [2021-12-14 13:13:07,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa828c472/13f6fa89483c44c08eb09de3d3bd4620 [2021-12-14 13:13:07,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:13:07,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:13:07,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:13:07,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:13:07,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:13:07,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5f297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07, skipping insertion in model container [2021-12-14 13:13:07,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:13:07,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:13:07,405 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] [2021-12-14 13:13:07,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:13:07,430 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:13:07,436 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] [2021-12-14 13:13:07,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:13:07,455 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:13:07,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07 WrapperNode [2021-12-14 13:13:07,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:13:07,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:13:07,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:13:07,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:13:07,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,479 INFO L137 Inliner]: procedures = 17, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 109 [2021-12-14 13:13:07,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:13:07,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:13:07,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:13:07,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:13:07,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:13:07,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:13:07,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:13:07,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:13:07,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (1/1) ... [2021-12-14 13:13:07,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:13:07,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:13:07,536 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) [2021-12-14 13:13:07,564 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 [2021-12-14 13:13:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:13:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 13:13:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-14 13:13:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-14 13:13:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:13:07,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:13:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-14 13:13:07,626 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:13:07,628 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:13:07,809 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 13:13:07,813 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 13:13:07,813 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 13:13:07,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:13:07 BoogieIcfgContainer [2021-12-14 13:13:07,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 13:13:07,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 13:13:07,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 13:13:07,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 13:13:07,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:13:07" (1/3) ... [2021-12-14 13:13:07,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7084bfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:13:07, skipping insertion in model container [2021-12-14 13:13:07,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:07" (2/3) ... [2021-12-14 13:13:07,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7084bfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:13:07, skipping insertion in model container [2021-12-14 13:13:07,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:13:07" (3/3) ... [2021-12-14 13:13:07,833 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_iterated.c [2021-12-14 13:13:07,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 13:13:07,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 13:13:07,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 13:13:07,876 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 13:13:07,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 13:13:07,889 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) [2021-12-14 13:13:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 13:13:07,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:13:07,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:13:07,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:13:07,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:13:07,899 INFO L85 PathProgramCache]: Analyzing trace with hash 304794067, now seen corresponding path program 1 times [2021-12-14 13:13:07,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:13:07,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179854109] [2021-12-14 13:13:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:13:07,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:13:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 13:13:07,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 13:13:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 13:13:08,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 13:13:08,036 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-14 13:13:08,038 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 13:13:08,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 13:13:08,041 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-14 13:13:08,043 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 13:13:08,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:13:08 BoogieIcfgContainer [2021-12-14 13:13:08,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 13:13:08,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 13:13:08,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 13:13:08,067 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 13:13:08,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:13:07" (3/4) ... [2021-12-14 13:13:08,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 13:13:08,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 13:13:08,071 INFO L158 Benchmark]: Toolchain (without parser) took 788.47ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 67.6MB in the end (delta: 30.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2021-12-14 13:13:08,072 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:13:08,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.98ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 99.8MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 13:13:08,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.59ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:13:08,073 INFO L158 Benchmark]: Boogie Preprocessor took 15.81ms. Allocated memory is still 123.7MB. Free memory was 97.7MB in the beginning and 96.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:13:08,077 INFO L158 Benchmark]: RCFGBuilder took 318.51ms. Allocated memory is still 123.7MB. Free memory was 96.2MB in the beginning and 82.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-14 13:13:08,077 INFO L158 Benchmark]: TraceAbstraction took 249.53ms. Allocated memory is still 123.7MB. Free memory was 81.7MB in the beginning and 67.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-14 13:13:08,078 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 123.7MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:13:08,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.98ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 99.8MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.59ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.81ms. Allocated memory is still 123.7MB. Free memory was 97.7MB in the beginning and 96.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.51ms. Allocated memory is still 123.7MB. Free memory was 96.2MB in the beginning and 82.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 249.53ms. Allocated memory is still 123.7MB. Free memory was 81.7MB in the beginning and 67.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 2.95ms. Allocated memory is still 123.7MB. Free memory is still 67.6MB. 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, PartialOrderReductionTime: 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 [2021-12-14 13:13:08,113 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 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:13:09,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:13:09,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:13:09,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:13:09,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:13:09,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:13:09,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:13:09,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:13:09,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:13:09,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:13:09,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:13:09,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:13:09,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:13:09,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:13:09,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:13:09,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:13:09,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:13:09,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:13:09,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:13:09,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:13:09,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:13:09,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:13:09,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:13:09,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:13:09,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:13:09,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:13:09,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:13:09,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:13:09,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:13:09,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:13:09,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:13:09,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:13:09,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:13:09,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:13:09,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:13:09,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:13:09,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:13:09,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:13:09,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:13:09,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:13:09,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:13:09,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-14 13:13:09,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:13:09,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:13:09,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:13:09,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:13:09,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:13:09,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:13:09,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:13:09,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:13:09,741 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:13:09,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:13:09,742 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:13:09,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:13:09,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:13:09,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:13:09,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:13:09,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:13:09,743 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-14 13:13:09,743 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-14 13:13:09,743 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-14 13:13:09,743 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:13:09,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:13:09,744 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:13:09,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:13:09,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:13:09,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:13:09,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:13:09,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:13:09,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:13:09,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:13:09,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:13:09,745 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-14 13:13:09,745 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-14 13:13:09,745 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:13:09,746 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:13:09,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:13:09,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:13:09,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-14 13:13:09,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 [2021-12-14 13:13:09,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:13:09,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:13:10,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:13:10,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:13:10,004 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:13:10,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-12-14 13:13:10,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04bc3d821/0743126cafe948e5b8052a5d4cf7c6d4/FLAG888eb8cf2 [2021-12-14 13:13:10,438 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:13:10,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-12-14 13:13:10,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04bc3d821/0743126cafe948e5b8052a5d4cf7c6d4/FLAG888eb8cf2 [2021-12-14 13:13:10,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04bc3d821/0743126cafe948e5b8052a5d4cf7c6d4 [2021-12-14 13:13:10,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:13:10,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:13:10,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:13:10,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:13:10,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:13:10,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b39e258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10, skipping insertion in model container [2021-12-14 13:13:10,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:13:10,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:13:10,568 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] [2021-12-14 13:13:10,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:13:10,615 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:13:10,634 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] [2021-12-14 13:13:10,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:13:10,669 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:13:10,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10 WrapperNode [2021-12-14 13:13:10,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:13:10,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:13:10,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:13:10,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:13:10,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,697 INFO L137 Inliner]: procedures = 18, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2021-12-14 13:13:10,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:13:10,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:13:10,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:13:10,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:13:10,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:13:10,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:13:10,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:13:10,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:13:10,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:10" (1/1) ... [2021-12-14 13:13:10,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:13:10,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:13:10,776 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) [2021-12-14 13:13:10,791 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 [2021-12-14 13:13:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:13:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-14 13:13:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-14 13:13:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-14 13:13:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:13:10,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:13:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-14 13:13:10,869 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:13:10,870 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:13:24,255 WARN L228 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") [2021-12-14 13:13:24,258 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:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) 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:735) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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:237) ... 25 more [2021-12-14 13:13:24,262 INFO L158 Benchmark]: Toolchain (without parser) took 13798.22ms. Allocated memory is still 86.0MB. Free memory was 64.4MB in the beginning and 47.8MB in the end (delta: 16.6MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-12-14 13:13:24,262 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:13:24,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.76ms. Allocated memory is still 86.0MB. Free memory was 64.4MB in the beginning and 66.7MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-14 13:13:24,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.31ms. Allocated memory is still 86.0MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:13:24,264 INFO L158 Benchmark]: Boogie Preprocessor took 27.13ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 62.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:13:24,264 INFO L158 Benchmark]: RCFGBuilder took 13534.74ms. Allocated memory is still 86.0MB. Free memory was 62.6MB in the beginning and 47.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-14 13:13:24,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2021-12-14 13:13:24,273 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 --- 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 33.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.76ms. Allocated memory is still 86.0MB. Free memory was 64.4MB in the beginning and 66.7MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.31ms. Allocated memory is still 86.0MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.13ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 62.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 13534.74ms. Allocated memory is still 86.0MB. Free memory was 62.6MB in the beginning and 47.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. 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:241) 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")